Add two-digit numbers to 100
Represent and solve addition situations with two-digit whole numbers, with totals up to 100. Unlimited questions, five difficulty levels, and a full worked solution every time — free.
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Owen has 14 seashells. Owen gets 14 more seashells. How many seashells does Owen have now?
Answer: 28
See one solved, step by step
Owen has 14 pencils. Owen gets 17 more pencils. How many pencils does Owen have now?
📘 Worked solution
14 + 7 = 11Add the ones first: 11 is 10 or more, so regroup 10 ones as 1 extra ten.
21 + 1 + 1 = 3Add the tens, plus the extra ten you just regrouped.
3= 31Put the new tens together with the 1 ones left over: 31.
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