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Subtracting Two-digit Numbers

Mathematics, Grade 3

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tens ones tens ones tens ones tens ones tens ones Number Line Subtracting with Regrouping Place 32 blocks in the tens and ones columns. 1. 1 ten = 10 ones 34 – 13 = ? 32 – 7 = ? Regroup Counting Back tens ones 3 – 2 7 Regroup 1 ten as 10 ones. 2. 3 – 2 2 12 7 tens ones 3 – 2 2 12 7 5 3 – 2 2 12 7 5 2 difference 3 1 – 4 2 1 3 Subtract the ones. 3. Subtract the tens. When subtracting 1, 2, or more from a number, you can subtract by counting back. 4. 0 1 2 3 4 5 6 7 8 9 10 tens ones tens ones tens ones tens ones tens ones Example: 6 – 2 = 4 Subtracting without Regrouping © Copyright NewPath Learning. All Rights Reserved. 93-4202 www.newpathlearning.com Subtracting Two-digit Numbers

\|xiBAHBDy01628rzu tens ones tens ones tens ones tens ones tens ones Key Vocabulary Terms • count back • regroup • difference • subtract • number line • tens • ones Subtracting with Regrouping Place 32 blocks in the tens and ones columns. 1. 1 ten = 34 – 13 = ? 32 – 7 = ? Regroup tens ones 3 – 2 7 Regroup 1 as . 2. 3 – 2 7 tens ones 3 – 2 7 3 – 2 7 5 2 difference 3 1 – 4 3 Subtract the ones . 3. Subtract the tens . 4. tens ones tens ones tens ones tens ones tens ones Subtracting without Regrouping Number Line Counting Back When subtracting 1, 2, or more from a number, you can subtract by counting back. 0 1 2 3 4 5 6 7 8 9 10 Example: 6 – 2 = 4 © Copyright NewPath Learning. All Rights Reserved. 93-4202 www.newpathlearning.com Subtracting Two-digit Numbers

Subtracting Two-digit Numbers

Mathematics, Grade 3

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