subtraction with regrouping

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Slide 1: 

OBJECTIVES Subtract two-digit numbers with regrouping Slide 1

Slide 2: 

Tens Ones 32 -16 2 \ 12 6 1 Subtracting Two-digit numbers

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45 -27 3 / 15 8 1

Slide 4: 

3 tens and 4 ones Regroup 1 ten

Slide 5: 

2 tens and 14 ones 3 tens and 4 ones=

Slide 6: 

Regroup. 1. 46 = 4 tens, 6 ones______ 2. 74 = 7 tens, 4 ones______ 3. 52 = 5 tens, 2 ones______ 4. 93 = 9 tens, 3 ones______ 5. 65 = 6 tens, 5 ones______ 2. 6 tens, 14 ones 3. 4 tens, 12 ones 4. 8 tens, 13 ones 1. 3 tens, 16 ones 5. 5 tens, 15 ones

Slide 7: 

Expanded notation 62 = 60 + 2 - 25 = 20 + 5 50 + 12 - 20 + 5 7 30 + = 37

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Find the difference. 1. 74 -19 2. 72 -25 3. 63 - 45 4. 85 - 37 5. 72 -26 6. 91 - 63 55 47 18 48 46 28

Slide 9: 

Michael has 25 candies. On his way home, he met two street children. He shared 8 candies to these children. How many candies will be left to Michael?

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Generalization To subtract two – digit numbers with regrouping, regroup the numbers in the ones place, then subtract. Subtract the digits in the tens place.

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