Grade 3 Math · Number

Add 3-digit whole numbers

Represent and solve addition problems with 3-digit whole numbers, with totals up to 1000, using the standard algorithm. Unlimited questions, five difficulty levels, and a full worked solution every time — free.

Practice this skill Curriculum: G3-B2.4, G3-B2.5

Try one

Liam has 113 hockey cards. Liam gets 235 more hockey cards. How many hockey cards does Liam have now?

Answer: 348

See one solved, step by step

Sam has 466 goldfish crackers. Sam gets 182 more goldfish crackers. How many goldfish crackers does Sam have now?

📘 Worked solution
16 + 2 = 8Add the ones first.
26 + 8 = 14Add the tens. That's 10 or more, so regroup 10 tens as 1 extra hundred.
34 + 1 + 1 = 6Add the hundreds, plus the extra hundred you just regrouped.
4= 648Put the hundreds, tens, and ones together: 648.

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