Grade 2 Math · Regrouping
Build Grade 2 math skills with five 10-question practice tests covering regrouping in addition and subtraction, place value, and word problems.
These Grade 2 Math practice tests help students regroup when adding or subtracting two-digit numbers. Students practice exchanging 10 ones for 1 ten, trading 1 ten for 10 ones, and explaining why the value stays the same.
Complete one 10-question test at a time. Use base-ten blocks or quick drawings to show the exchange between tens and ones. Ask the student to explain why regrouping changes the form of a number but not its total value.
For more Grade 2 Math practice, return to the Grade 2 Math category.
1. Test
A 10-question Grade 2 math practice test on regrouping tens and ones during addition and subtraction.
Read each problem carefully. Choose one answer, then open the solution to review how tens and ones are regrouped.
Please select an answer first.
Correct answer: A
The correct answer is 45.
Add the ones: 7 + 8 = 15. Write 5 ones and regroup 1 ten. Then 2 + 1 + 1 = 4 tens, so the sum is 45.
Please select an answer first.
Correct answer: B
The correct answer is 63.
Add the ones: 6 + 7 = 13. Write 3 ones and regroup 1 ten. Then 3 + 2 + 1 = 6 tens, so the sum is 63.
Please select an answer first.
Correct answer: C
The correct answer is 83.
Add the ones: 8 + 5 = 13. Write 3 ones and regroup 1 ten. Then 4 + 3 + 1 = 8 tens, so the sum is 83.
Please select an answer first.
Correct answer: D
The correct answer is 85.
Add the ones: 6 + 9 = 15. Write 5 ones and regroup 1 ten. Then 5 + 2 + 1 = 8 tens, so the sum is 85.
Please select an answer first.
Correct answer: A
The correct answer is 43.
Add the ones: 9 + 4 = 13. Write 3 ones and regroup 1 ten. Then 1 + 2 + 1 = 4 tens, so the sum is 43.
Please select an answer first.
Correct answer: B
The correct answer is 63.
Add the ones: 7 + 6 = 13. Write 3 ones and regroup 1 ten. Then 4 + 1 + 1 = 6 tens, so the sum is 63.
Please select an answer first.
Correct answer: C
The correct answer is 85.
Add the ones: 8 + 7 = 15. Write 5 ones and regroup 1 ten. Then 5 + 2 + 1 = 8 tens, so the sum is 85.
Please select an answer first.
Correct answer: D
The correct answer is 83.
Add the ones: 5 + 8 = 13. Write 3 ones and regroup 1 ten. Then 6 + 1 + 1 = 8 tens, so the sum is 83.
Please select an answer first.
Correct answer: A
The correct answer is 64.
Add the ones: 9 + 5 = 14. Write 4 ones and regroup 1 ten. Then 3 + 2 + 1 = 6 tens, so the sum is 64.
Please select an answer first.
Correct answer: B
The correct answer is 93.
Add the ones: 4 + 9 = 13. Write 3 ones and regroup 1 ten. Then 7 + 1 + 1 = 9 tens, so the sum is 93.
Regrouping changes a number into equivalent place-value groups, such as trading 10 ones for 1 ten or 1 ten for 10 ones.
In addition, regrouping is used when the ones total is 10 or more. Ten ones become one additional ten.
The page includes five mini tests with 10 questions each, for 50 Grade 2 regrouping questions in total.
