Video: Using the Break-Apart Strategy to Subtract within 20

We can make ten to help us subtract. Pick the calculation that matches 14 − 6. [A] 14 − 4 [B] 14 − 4 − 2 [C] 10 − 6, Find the answer: 14 − 6 = _

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Video Transcript

We can make 10 to help us subtract. Pick the calculation that matches 14 take away six. Is it 14 take away four, 14 take away four take away two, or 10 take away six? Find the answer: 14 minus six.

We can use the tens frame and the counters to find 14 subtract six. The tens frame on the left has 10 counters. And the one on the right has four. We need to take away six counters. One, two, three, four. There are no counters left in this ten frame. So we have to take some from the other one. We’ve taken away four. And now, we need to take away some more to make six. Four, five, six. We started with 10. We subtracted four and two more. So this is the calculation that matches 14 take away six.

To find the answer to 14 take away six, we need to count how many counters are left. One, two, three, four, five six, seven, eight. The calculation that matches 14 subtract six is 10 subtract four subtract two. And the answer to 14 minus six is eight.

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