Adding Within 100: Grade 2 Math Worksheet – PDF Download

Grade 2 Add Within 100 Worksheet: problems 1–5

Problem 1: Add tens

Add.

1. \(30+40\)
2. \(20+60\)
3. \(50+40\)
4. \(70+20\)

Problem 2: Blocks without regrouping

Add the base-ten blocks. Write the sum.

Problem 3: Add tens to a number

Add a two-digit number and tens.

1. \(47+30\)
2. \(25+50\)
3. \(62+20\)
4. \(18+70\)

Problem 4: Add ones, no regrouping

Add.

1. \(42+6\)
2. \(53+4\)
3. \(75+3\)
4. \(81+8\)

Problem 5: Add ones with regrouping

Add. Regroup the ones when needed.

1. \(38+7\)
2. \(56+8\)
3. \(49+5\)
4. \(67+6\)

Grade 2 Add Within 100 Worksheet: problems 6–10

Problem 6: Blocks with regrouping

Add the base-ten blocks. Trade 10 ones for 1 ten if you can.

Problem 7: Add two-digit numbers

Add. No regrouping is needed.

1. \(34+25\)
2. \(42+36\)
3. \(51+47\)
4. \(63+24\)

Problem 8: Add with regrouping

Add. Regroup the ones.

1. \(36+27\)
2. \(48+35\)
3. \(29+44\)
4. \(15+69\)

Problem 9: Open number line

Find \(53+29\) on the open number line. Jump 20, then jump 9.

Problem 10: Break apart tens and ones

Add the tens, add the ones, then add the two parts.

1. \(46+37\)
2. \(58+26\)
3. \(29+43\)

Grade 2 Add Within 100 Worksheet: problems 11–15

Problem 11: Missing addend

Find the missing number.

1. \(24+?=50\)
2. \(36+?=81\)
3. \(?+28=60\)
4. \(15+?=93\)

Problem 12: Compare sums

Write >, <, or = in each circle. Work out both sides first.

1. \(45+27 \text{ ( ) } 50+20\)
2. \(38+26 \text{ ( ) } 30+40\)
3. \(29+31 \text{ ( ) } 60\)
4. \(52+19 \text{ ( ) } 48+25\)

Problem 13: Add three numbers

Add.

1. \(20+30+40\)
2. \(14+25+11\)
3. \(32+15+21\)
4. \(41+23+34\)

Problem 14: Three numbers with regrouping

Add. Regroup when needed.

1. \(28+15+30\)
2. \(19+27+31\)
3. \(24+38+16\)
4. \(35+26+19\)

Problem 15: Four numbers

Add the pairs, then add the pair sums. Fill in the boxes.

Grade 2 Add Within 100 Worksheet: problems 16–20

Problem 16: Four numbers with regrouping

Add.

1. \(27+16+34+19\)
2. \(18+22+35+25\)

Problem 17: Check by subtracting

Priya adds \(64+19\). Write the sum. Then check it by subtracting 19 from the sum.

Problem 18: Find the mistake

Noah wrote \(47+35=72\). What mistake did he make? Write the correct sum.

Problem 19: Fruit stand

At the farmers market, a stand has 38 apples and 45 pears. How many pieces of fruit does the stand have?

Problem 20: Reading log

Maya read 27 pages on Monday and 35 pages on Tuesday. How many pages did she read in all?

Grade 2 Add Within 100 Worksheet: problems 21–24

Problem 21: Bake sale

The bake sale sold 24 cookies, 18 brownies, and 23 muffins. How many treats did it sell?

Problem 22: Library cart

A library cart holds 17 picture books, 26 chapter books, and 31 comic books. How many books are on the cart?

Problem 23: Sticker collection

Sofia has 56 stickers. Aisha gives her 28 more, and Liam gives her 9 more. How many stickers does Sofia have now?

Problem 24: Field trip

One bus carries 39 students and another bus carries 47 students. A van carries 12 students. How many students go on the trip? Is the total less than 100?

How to use this grade 2 add within 100 worksheet

Print this grade 2 add within 100 worksheet as a PDF, solve every problem on paper, then compare with the answer key.

See every chapter on the Grade 2 math page.