MAKING TEN

Decompose numbers to make ten first - the most powerful addition strategy.

L2L3

CS.N.1.3·Performing addition with numbers 0–100(I)CS.N.1.4·Using addition properties for quick calculation(I)

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THE MAKE-TEN STRATEGY

Making Ten is one of the most powerful addition strategies. The idea is simple: break one number apart so that part of it combines with the other number to make exactly 10. Then add whatever is left. Our brains find it very easy to add to 10!

8 + 5

18 needs 2 to make 10

2Split 5 into 2 + 3

310 + 3 = 13

= 13

LEADER TIP

Ten-frames are essential manipulatives. Practice number bonds to 10 daily until they become automatic.

BEFORE THIS LESSON, TRY

Counting On

PRACTICE WITH THESE GAMES

Timed Addition

Timed Pairs

Number Balance

Want more practice? Generate printable worksheets with similar problems.

Go to Worksheets

CONTINUE WITH:

Place Value Addition

Friendly Numbers

MAKING TEN

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MAKING TEN