Mathematics
Grade-4-
Easy

Question

The Tenths digit in 157.842 is

  1. 5
  2. 7
  3. 8
  4. 4

Hint:

The first digit after the decimal is the tenths place digit. The second digit after the decimal represents the hundredths place and so on.

The correct answer is: 8


Here, we have to find the tenths place digit of 157.842.
Since, the first digit after decimal represents the tenths place.
So, 8 is the tenths place digit of 157.842.
Hence, the correct option is C.

The digit multiplied by their place values and added together gives the number.

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7 Tens 3 Ones 52 Hundredths in decimal form is written as

Here, we have to write 7 tens 3 ones 52 hundredths into decimal form.
7 tens 3 ones 52 hundredths = (7×10) + (3×1) + (52⁄100)
= 70+3+0.52
=73.52.
Hence, the correct option is B.

7 Tens 3 Ones 52 Hundredths in decimal form is written as

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Here, we have to write 7 tens 3 ones 52 hundredths into decimal form.
7 tens 3 ones 52 hundredths = (7×10) + (3×1) + (52⁄100)
= 70+3+0.52
=73.52.
Hence, the correct option is B.
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Write it in fraction form

Here, we have to covert a decimal into a fraction.
We have,1.57 = (1×1) + (5×1⁄10) + (7×1⁄100)
= (100+50+7)⁄100
=157⁄100.
= 1 57⁄100.
Hence, the correct option is D.


Write it in fraction form

MathematicsGrade-4-
Here, we have to covert a decimal into a fraction.
We have,1.57 = (1×1) + (5×1⁄10) + (7×1⁄100)
= (100+50+7)⁄100
=157⁄100.
= 1 57⁄100.
Hence, the correct option is D.
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represents

Here, we are given a pictorial representation of a fraction. We have to write it in fraction form.
Total number of squares = 100.
Number of colored squares = 36.
So, the fraction is 36⁄100.
Hence, the correct option is A.


represents

MathematicsGrade-4-
Here, we are given a pictorial representation of a fraction. We have to write it in fraction form.
Total number of squares = 100.
Number of colored squares = 36.
So, the fraction is 36⁄100.
Hence, the correct option is A.
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In a marathon, Bucky completed the race in 1 hr 12 min 24 sec, Roger finished the race in 1 hr 10 min 12 sec, Tony finished in 1 hr 12 min 20 sec and Chadwick finished it in 1 hr 10 min 24 sec. If the results were ranked fastest to slowest, then the one who stands medal less is

Here, we are given the timings of 4 boys who completed a race. We have to find the boy who will not win a medal.
The timings of Bucky, Roger, Tony and Chadwick are 1 hr 12 min 24 sec, 1 hr 10 min 12 sec, 1 hr 12 min 20 sec and 1 hr 10 min 24 sec respectively.
The values arranged in descending order is 1 hr 12 min 24 sec, 1 hr 12 min 20 sec, 1 hr 10 min 24 sec and 1 hr 10 min 12 sec.
Since, Bucky took the highest time to finish the race. So, he will be medal less.
Hence, the correct options is A.

In a marathon, Bucky completed the race in 1 hr 12 min 24 sec, Roger finished the race in 1 hr 10 min 12 sec, Tony finished in 1 hr 12 min 20 sec and Chadwick finished it in 1 hr 10 min 24 sec. If the results were ranked fastest to slowest, then the one who stands medal less is

MathematicsGrade-4-
Here, we are given the timings of 4 boys who completed a race. We have to find the boy who will not win a medal.
The timings of Bucky, Roger, Tony and Chadwick are 1 hr 12 min 24 sec, 1 hr 10 min 12 sec, 1 hr 12 min 20 sec and 1 hr 10 min 24 sec respectively.
The values arranged in descending order is 1 hr 12 min 24 sec, 1 hr 12 min 20 sec, 1 hr 10 min 24 sec and 1 hr 10 min 12 sec.
Since, Bucky took the highest time to finish the race. So, he will be medal less.
Hence, the correct options is A.
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Steve started going to gym, before starting the gym his weight was 45.8 kg, at the end of first week his weight came down to 45.5 kg. The next week it came down to 45.2 kg. He noticed a pattern and he predicted the weight he would be in the next week. The weight he predicted is

Steve started going to gym, before starting the gym his weight was 45.8 kg, at the end of first week his weight came down to 45.5 kg. The next week it came down to 45.2 kg. He noticed a pattern and he predicted the weight he would be in the next week. The weight he predicted is

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The hundredths in 72.8 is

Here, we have to find the hundredths place digit of 72.8.
72.8 can be written as 72.80.
Since, the second digit after the decimal represents the hundredths place. So, the hundredths place digit is 0.
Hence, the correct option is D.

The hundredths in 72.8 is

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Here, we have to find the hundredths place digit of 72.8.
72.8 can be written as 72.80.
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Hence, the correct option is D.
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represents


represents

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The heights of the students of grade 4 are as follows:
Albert – 3.8 feet
Patrick – 3.5 feet
John – 3.0 feet
Adam – 3.10 feet
Jacob – 3.6 feet
For the selection of students for the long jump, Selectors asked them to stand in a line according to their heights in decreasing order (the tallest being the first participant). The student standing fourth in the line would be

GIVEN-
Heights of students-
Albert – 3.8 feet
Patrick – 3.5 feet
John – 3.0 feet
Adam – 3.10 feet
Jacob – 3.6 feet
TO FIND-
Student standing in 4th position when arranged in decreasing order of heights.
SOLUTION-
We will first arrange heights of the given students in decreasing order-
3.8, 3.6, 3.5, 3.10, 3.0.
Hence, 4th position = 3.10 feet.
Hence, when arranged in decreasing order of heights, the person on 4th position among the given set of people is Adam with a height of 3.10 feet.
FINAL ANSWER-
Option 'c' i.e. 'Adam' is the correct answer to the given question.

The heights of the students of grade 4 are as follows:
Albert – 3.8 feet
Patrick – 3.5 feet
John – 3.0 feet
Adam – 3.10 feet
Jacob – 3.6 feet
For the selection of students for the long jump, Selectors asked them to stand in a line according to their heights in decreasing order (the tallest being the first participant). The student standing fourth in the line would be

MathematicsGrade-4-
GIVEN-
Heights of students-
Albert – 3.8 feet
Patrick – 3.5 feet
John – 3.0 feet
Adam – 3.10 feet
Jacob – 3.6 feet
TO FIND-
Student standing in 4th position when arranged in decreasing order of heights.
SOLUTION-
We will first arrange heights of the given students in decreasing order-
3.8, 3.6, 3.5, 3.10, 3.0.
Hence, 4th position = 3.10 feet.
Hence, when arranged in decreasing order of heights, the person on 4th position among the given set of people is Adam with a height of 3.10 feet.
FINAL ANSWER-
Option 'c' i.e. 'Adam' is the correct answer to the given question.
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The science teacher asked Charlie and Peter to choose a random number. Charlie said “I choose 99.99” and Peter said, “I go with 98.89”. Now teacher asked Sam to decide the greater number of both, the answer Sam would say is

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The tenths digit in 152.79 is

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We know that the first digit after the decimal represents the tenths place.
Here, 7 is in the tenths place.
Hence, the correct option is C.

The tenths digit in 152.79 is

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Here, we are to find the tenths digit of the decimal 152.79.
We know that the first digit after the decimal represents the tenths place.
Here, 7 is in the tenths place.
Hence, the correct option is C.
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marks scored by A = 6.5
marks scored by B = 15cross times 0.5 = 7.5
marks obtained by C = 7.5
so, highest marks is obtained by both B and C.

The multiple-choice exam contains a total of 20 questions and each question carries 0.5 marks. There are no negative marks for the incorrect answer. Student A scores 6.5, student B has 15 correct answers and student C has scored 7.5. The top of the three is

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marks scored by A = 6.5
marks scored by B = 15cross times 0.5 = 7.5
marks obtained by C = 7.5
so, highest marks is obtained by both B and C.
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The fraction of 71% equals 71 cross times 1 over 100 equals 71 over 100
decimal of fraction obtained = 0.71

Water covers 71% of the earth’s surface area. The decimal and the fraction that represents the portion of water on earth is.

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The fraction of 71% equals 71 cross times 1 over 100 equals 71 over 100
decimal of fraction obtained = 0.71
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The one-liter juice bottle is equally served to the 8 members of a party. The decimal quantity of juice from the bottle each member received will be

Juice quantity received by each member =1 over 8
decimal of fraction
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equals 0.125

The one-liter juice bottle is equally served to the 8 members of a party. The decimal quantity of juice from the bottle each member received will be

MathematicsGrade-4-
Juice quantity received by each member =1 over 8
decimal of fraction
=long division by 8 yields 0.125 pile none 1 negative 0 negative negative negative none 10 negative none 8 none negative negative negative negative none none 20 none negative 16 none none negative negative negative negative none none none 40 none none negative 40 none none none negative negative negative negative none none none 00 none none none blank end pile end long division
equals 0.125
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The fractions that Adam chooses is 1 half, John chooses is 2 over 6, Ray chooses is 3 over 6. The ones that choose equivalent fractions are

The fractions that Adam chooses is 1 half
 John chooses is 2 over 6
Ray chooses is 3 over 6
for adam and john           for adam and ray         for john and ray
1 half space a n d space 2 over 6 space space space space space space space space space space space space space space space space space space space space space space space space 1 half space a n d space 3 over 6 space space space space space space space space space space space space space space space space space space space space space space space space fraction numerator 2 over denominator 3 space end fraction space a n d space 3 over 6
1 cross times 6 space space space 2 cross times 2 space space space space space space space space space space space space space space space space space space space space space 1 cross times 6 space space space space 3 cross times 2 space space space space space space space space space space space space space space space space space space space space space space space 2 cross times 6 space space space 3 cross times 3
equals 6 space space space space space equals 4 space space space space space space space space space space space space space space space space space space space space space space space equals 6 space space space space equals 6 space space space space space space space space space space space space space space space space space space space space space space space space equals 12 space space equals 9
Therefore the ones who chose equivalent fraction are Adam and Ray.

The fractions that Adam chooses is 1 half, John chooses is 2 over 6, Ray chooses is 3 over 6. The ones that choose equivalent fractions are

MathematicsGrade-4-
The fractions that Adam chooses is 1 half
 John chooses is 2 over 6
Ray chooses is 3 over 6
for adam and john           for adam and ray         for john and ray
1 half space a n d space 2 over 6 space space space space space space space space space space space space space space space space space space space space space space space space 1 half space a n d space 3 over 6 space space space space space space space space space space space space space space space space space space space space space space space space fraction numerator 2 over denominator 3 space end fraction space a n d space 3 over 6
1 cross times 6 space space space 2 cross times 2 space space space space space space space space space space space space space space space space space space space space space 1 cross times 6 space space space space 3 cross times 2 space space space space space space space space space space space space space space space space space space space space space space space 2 cross times 6 space space space 3 cross times 3
equals 6 space space space space space equals 4 space space space space space space space space space space space space space space space space space space space space space space space equals 6 space space space space equals 6 space space space space space space space space space space space space space space space space space space space space space space space space equals 12 space space equals 9
Therefore the ones who chose equivalent fraction are Adam and Ray.
Grade-4-
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The fractions that are equivalent are

a. 8 over 7 text  and  end text 7 over 8           b. 7 over 2 text  and  end text 28 over 8         c. 3 over 2 text  and  end text 128 over 258           d. 5 over 2 text  and  end text 125 over 25
space space 8 cross times 8 space space space 7 cross times 7
equals 64 space space space space equals 49           space 7 cross times 8 space space space space space 28 cross times 2
equals 56 space space space space space equals 56      3 cross times 258 space space space space space 128 cross times 2
equals 774 space space space space space space equals 256        5 cross times 25 space space space space space 125 cross times 2
equals 125 space space space space space space equals 250
 The cross multiplication of the pair 7 over 2 text  and  end text 28 over 8 is equal.
Therefore,   7 over 2 text  and  end text 28 over 8 is an equivalent fraction.

The fractions that are equivalent are

MathematicsGrade-4-
a. 8 over 7 text  and  end text 7 over 8           b. 7 over 2 text  and  end text 28 over 8         c. 3 over 2 text  and  end text 128 over 258           d. 5 over 2 text  and  end text 125 over 25
space space 8 cross times 8 space space space 7 cross times 7
equals 64 space space space space equals 49           space 7 cross times 8 space space space space space 28 cross times 2
equals 56 space space space space space equals 56      3 cross times 258 space space space space space 128 cross times 2
equals 774 space space space space space space equals 256        5 cross times 25 space space space space space 125 cross times 2
equals 125 space space space space space space equals 250
 The cross multiplication of the pair 7 over 2 text  and  end text 28 over 8 is equal.
Therefore,   7 over 2 text  and  end text 28 over 8 is an equivalent fraction.
parallel

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