Video: Using Counters to Find Multiple Ways to Subtract from Numbers up to 10

Here are 7 counters. Hannah crossed out some counters and colored what was left. 7 − 3 = 4. Her picture shows that 7 minus 3 is 4. Pick the number sentence that shows 7 minus 2 is 5. Pick the picture that matches the number sentence. 7 − 5 = 2 Pick the number sentence that matches the picture.

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Video Transcript

Here are seven counters. Hannah crossed out some counters and coloured what was left. Seven subtract three equals four. Her picture shows that seven minus three is four. Pick the number sentence that shows seven minus two is five. Seven minus five equals two, or seven minus two equals five. Pick the picture that matches the number sentence. Seven take away five equals two. Pick the number sentence that matches the picture. Seven take away seven equals seven, or seven take away seven equals zero.

The first picture shows us seven minus two is five. We know that there are seven counters. And the word “minus” means that it is a subtraction. And we need to take away or minus two. Seven minus two equals five. This is the number sentence which shows us seven minus two is five.

The second part of the question asks us to find the picture that matches the number sentence seven take away five equals two. We know that both models show seven counters. And we have to subtract five. Which model shows this? The first model shows four counters being subtracted. And the second model shows five counters being subtracted. And there are two left. This is the picture which matches the number sentence seven subtract five equals two.

Finally, we need to pick the number sentence that matches the picture. We know there are seven counters. We have to take away all seven. And there are no counters left. The second number sentence must be correct because this shows no counters left. The number sentence that matches the picture is seven subtract seven equals zero. We used counters to help us model subtraction sentences.

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