Mathematics
Grade5
Easy
Question
Estimate to find the product of 62 × 87
- 3,600
- 4,800
- 6,300
- 5,400
Hint:
The estimate value are round up or down value of the actual value. The actual product is hard to do mentally and it takes time but when we take compatible number for estimation is easy to calculate mentally and saves time. Here we wants estimate product 62 x 87.
The correct answer is: 5,400
Here we need to find the estimated product of 62 x 87.
Since ,the actual product of 62 x 87 is,
62 x 87= 5394
And it mentally hard to calculate the we are going to estimate this product and find the compatible numbers,
Now
62 → 60 , here the 62 is rounded down to 60.
And,
87 → 90, here 87 rounded up to 90 ,
Both number are compatible now the product of these numbers are,
60 x 90= 5400
Therefore, the estimated product of 62 x 87 is 60 x 90= 5400 .
The correct answer is 5400 .
The estimated product is the rounded product of actual product. Just find the compatible number and rounded up or down and the product is like mentally easy to solve. Apply same methods in similar questions.
