Grade 2 · Three-Digit Addition
Trade a group of 10 ones.
Combine both number capsules in the three chambers.
Adding three-digit numbers combines equal place values. Regroup ten ones as one ten and ten tens as one hundred when needed.
For 268 + 157, 15 ones become 1 ten and 5 ones. The resulting 12 tens become 1 hundred and 2 tens, giving 425.
Process each exchange once and preserve the same total value.
A free Grade 2 math game for practicing add within 1,000 using place-value models. No account or download is needed.
Learning area: Adding & subtracting · Three-Digit Addition.
Difficulty: 3 · Challenge within Grade 2. Combine ideas, remember more information or solve several steps.
Try another learning areaData & Graph Pet Shelter1 · StartCombine two three-digit addends as hundreds, tens, and ones, exchange ten ones for one ten and ten tens for one hundred, then choose the normalized total.
Choose an activity that fits your learner. Grade labels are a guide; adults can help with the instructions.
