Mathematics
Grade-1
Easy
Question
Subtract the tens the model shows.
- 80 - 10 = 70
- 80 - 70 = 10
- 80 - 20 = 60
- 80 - 30 = 50
The correct answer is: 80 - 70 = 10
The model shows 7 tens crossed out from 8 tens and 1ten is left.
8 tens – 7 tens = 1ten
Hence 80 – 70 = 10
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