Mathematics
Grade-2
Easy
Question
Add the following number blocks, regroup them if needed.
- 42
- 52
- 51
- 54
The correct answer is: 52
There is a total of 4 tens blocks and 12 ones blocks.
We can write it as
10+5+4+10+10+10+3=10+10+10+10+(5+4+3)=10+10+10+10+12=10+10+10+10+2(Re-grouping 12 as 12=10+2)=10+10+10+10+10+2=52
So, the correct answer is 52.
Correct choice is 2.
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