Grades 1–2
Add and Subtract Tens
Thirty mental math problems like 30 + 40, 90 − 60 and 45 + 30. Only the tens change!
Math worksheet · Addition and subtraction practice
True or False Equations
Sixteen number sentences like 8 = 3 + 5 or 6 + 4 = 5 + 5. Kids decide if both sides are equal and circle true or false.
- Grade level
- Grades 1–2
- Time
- About 15 minutes
- Answer key
- Yes, page 2 of the PDF
- Kids practice
- Addition and subtraction facts, Regrouping, Mental math strategies, Checking with the inverse
What kids do
“Is the number sentence true? Do both sides make the same number? Circle T or F.”
Sample problems
- 4=5−1
- 8+3=6+6
- 3+1=6
Teacher tip
This sheet fixes the idea that = means “the answer comes next”. Talk through 6 + 4 = 5 + 5 together.
How to use it
- Let partners check each other with a calculator after they finish.
- Warm up with two minutes of facts out loud before kids start.
- Do the first problem together under a document camera, then let kids finish on their own.
Watch for
Subtracting the smaller digit from the bigger one in each column (54 − 27 = 33). Ask kids to say “Can I take 7 from 4?” before they write.
Talk about it
- Show me one problem where you had to regroup. Why?
- Which problem was the hardest? What made it hard?
Take it further
Have kids make their own fact family triangles for a partner to solve.
US Letter, prints well in black and white. Free for home and classroom use: print as many copies as you need.
More addition and subtraction practice worksheets
Grades 1–2
Two-Digit Addition with Base-Ten Blocks
Six problems drawn as tens rods and ones cubes. Kids put the tens together, then the ones, and write the sum.
Grades 2–3
Open Number Line: Jump by Tens and Ones
Six problems within 100 with an empty number line. Kids jump by tens, then ones, and write where they land.
Grades 2–3
Addition Square Puzzles
Six little number squares. Every row and column adds up to the number at its end. Find the missing numbers.
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