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Make A Ten Addition Strategy
By Justine Buonovolonta Resource Room Teacher Wood Park Primary School
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This lesson requires the understanding of all the ways to make 10
This lesson requires the understanding of all the ways to make 10. ***Tip: Print this slide to use as a reference.*** In school, we play, “I say….you say” and students have to think about the number that adds to make 10. “I say 3...you say…..(7)” “I say 5… you say…. (5)” “I say 6…you say ….(4)”
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***Tip: Print this slide to use as a reference.***
Tens frame: This should be used if you child needs more concrete support.
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8 3 5 Key Vocabulary To Use With Your Child…
Benchmark 10: A two digit number ending with a zero, such as 10, 20, 30…80, 90 Decompose: To break a number apart into 2 numbers that add up to the number can be decomposed into 3 and 5. (See below) Number Bond: A mental picture of the relationship between a number and the parts that combine to make it. (See above) 8 3 5
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Other Strategies To Consider…
Number Line/Hundreds Board Counting On
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Let’s Try Something NEW…. Building Our Mental Math Stamina
= Think about the 7 ones in the number 37… How many more ones do you need to get to the next benchmark ten? (ans:3)
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If this is tricky for your child….
= Consider using the tens frame and red/yellow chips. Place 7 red chips in the frame and then count how many more chips are needed to fill the frame (to make 10).
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= So, decompose 8 into two parts… where one part is 3… and the other part must be 5. (3+?=8) (The two parts must add up to the original number/whole.)
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= Now add the 3 ones to the 37 to get to the benchmark ten of = 40 Then add the remaining ones to = 45 So, 37+8=45
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Thanks for learning and lending a helping hand!
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That’s All Folks!
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