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.
3. 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 15 ones are made, so 1 ten is regrouped.
Ten ones can be regrouped as 1 ten, leaving 5 ones.
Please select an answer first.
Correct answer: B
The correct answer is It trades 1 ten for 10 ones.
When the top ones are too small, 1 ten is traded for 10 ones.
Please select an answer first.
Correct answer: C
The correct answer is 36 + 28.
In 36 + 28, 6 + 8 = 14, so one ten must be regrouped.
Please select an answer first.
Correct answer: D
The correct answer is 34 + 22.
In 34 + 22, 4 + 2 = 6, so no new ten is needed.
Please select an answer first.
Correct answer: A
The correct answer is 10 ones.
The base-ten system groups 10 ones into 1 ten.
Please select an answer first.
Correct answer: B
The correct answer is Write 3 ones and regroup 1 ten.
Thirteen ones are 1 ten and 3 ones, so 3 is written in the ones place and 1 ten is regrouped.
Please select an answer first.
Correct answer: C
The correct answer is Trade 1 ten so there are 12 ones.
The 2 ones cannot subtract 7 ones, so one ten becomes 10 ones and joins the 2 ones.
Please select an answer first.
Correct answer: D
The correct answer is It keeps the place values equivalent while making the operation possible.
Regrouping changes the form of a number without changing its total value.
Please select an answer first.
Correct answer: A
The correct answer is 75.
Add 9 + 6 = 15, regroup 1 ten, then add 5 + 1 + 1 = 7 tens. The sum is 75.
Please select an answer first.
Correct answer: B
The correct answer is 15.
Trade 1 ten for 10 ones: 13 - 8 = 5, then 3 - 2 = 1. The difference is 15.
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.
