Mathematics

Grade-2

Easy

Question

# Roger puts 8 pennies to his bank. Then he added 7 pennies and 25 pennies to his bank. How many pennies does he have in all?

- 30
- 40
- 50
- 60

Hint:

### Use partial sum method.

## The correct answer is: 40

### Roger puts 8 pennies to his bank. Then he added 7 pennies and 25 pennies to his bank.

Total pennies = 8 + 7 + 25

To find partial sums add the digits in tens place and ones place seperately.

Partial sum of 8 + 7 + 25

Step 1 : Add digits in tens and ones place seperately:

08

+ 07

_____

15

Step 2: Partial sum of 15 + 25

10 05

+ 20 and + 05

_____ ______

30 10

Thus, the sum of 15 + 25 are 30 + 10 = 40.

So, Roger has 40 pennies in all.

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