TinyClimbs

Math Worksheet Generator

Tap a preset, or pick the operation, number range and regrouping yourself, from kindergarten sums within 10 to 3-digit problems and a mental math set. Then print, with an optional answer key. Pre-K through Grade 3.

How to use this sheet (2 min read)
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Addition · 0–20
20 problems · solve each one and write your answer.
1
12
+1
2
11
+9
3
19
+1
4
12
+6
5
9
+11
6
9
+6
7
3
+7
8
5
+3
9
10
+1
10
8
+10
11
6
+3
12
1
+9
13
12
+7
14
13
+4
15
15
+1
16
14
+3
17
15
+5
18
5
+12
19
3
+6
20
8
+3

Worked example: 3-digit regrouping

347 + 285

  1. Ones: 7 + 5 = 12. Write 2, carry 1.
  2. Tens: 4 + 8 + 1 = 13. Write 3, carry 1.
  3. Hundreds: 3 + 2 + 1 = 6.

347 + 285 = 632

532 − 178

  1. Ones: you can't take 8 from 2, so borrow a ten. 12 − 8 = 4, and the 3 tens become 2.
  2. Tens: you can't take 7 from 2, so borrow a hundred. 12 − 7 = 5, and the 5 hundreds become 4.
  3. Hundreds: 4 − 1 = 3.

532 − 178 = 354

Check by adding: 354 + 178 = 532, the number you started with.

Math worksheet FAQ

What does regrouping mean?

Regrouping is what older books call carrying and borrowing: a column has too much or too little, so you trade with the column next to it. In 47 + 25, the ones make 7 + 5 = 12, so write 2 and carry 1 ten; the tens make 4 + 2 + 1 = 7, for 72. In 42 − 17, you can't take 7 from 2, so borrow a ten: 12 − 7 = 5, then 3 − 1 = 2, for 25.

When do kids start 3-digit addition and subtraction?

Typically in Grade 2 to 3. Start without regrouping, so every column works on its own: tap "3-digit no regrouping". Once that feels easy, tap "3-digit with regrouping", where at least one column in every problem carries or borrows.

What should I give a kindergartener?

Numbers within 10, written across the page, with 12 problems on the sheet. Tap "Kindergarten within 10" to get exactly that. Counters and fingers are fine at this stage. The preset mixes adding and taking away, so set Operation to Addition if subtraction is still new.

What is in the mental math set?

Five strategies, mixed on the page: doubles (7 + 7), make ten (3 + 7), add or subtract 10 (46 + 10, 46 − 10), add 9 (24 + 9) and multiples of ten (30 + 40, 70 − 20). No written working: kids do the sum in their head and write only the answer.

Is there an answer key, and is it free to print?

Yes to both. Tick "Include an answer key on a second page" and the key follows the worksheet with every answer filled in, for every set here. Downloading the PDF is free and doesn't need an account; only adding sheets to the print queue asks you to log in.