Year 3 maths · D.5 · Add and Subtract to 100
Mentally subtract 10s from two-digit numbers
Subtract the tens. The ones stay the same.
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Omar says: 46 − 10 =
Answer: 36
Lia wonders: 87 − 10 =
Answer: 77
Ben says: 74 − 70 =
Answer: 4
Tip: Subtract the tens. The ones stay the same.
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Up next
- Next in this topic Add three or four two-digit numbers Year 3
- Ready for more Add three-digit numbers with regrouping Year 4
- Need a warm-up? Add a two-digit and a one-digit number Year 2
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