Video: Addition and Subtraction Fact Families with Numbers up to 10

There are 5 green counters and 4 blue counters. There are 9 counters altogether finish the family of facts. 4 + 5 = _, 5 + _ = 9, 9 − _ = 4, 9 _ 4 = 5

02:26

Video Transcript

There are five green counters and four blue counters. There are nine counters altogether. Finish the family of facts. Four plus five equals what, five plus what equals nine, nine take away what equals four, nine what four equals five.

We know there are five green counters and four blue counters. And altogether there are nine counters. Four plus five equals nine. We can use the number bond to help us. We know that four plus five equals nine. What do we add to five to make nine? The answer is four. The two numbers we can add together to make nine are four and five. And we can change the order, four plus five or five plus four. These are the two addition facts we can see from the picture and the number bond.

If we start with nine, what do we take away to give us four? We’ve used the nine and the four, so the missing number must be five. If nine take away five is four, the second sentence must say nine take away four equals five. There were no missing numbers in this sentence, just the missing subtract sign. Nine take away four is five.

There are five green counters and four blue counters. There are nine counters altogether. Four plus five equals nine. Five plus four equals nine. Nine take away five equals four. Nine take away four equals five. We completed the missing numbers and the missing symbols to finish the family of facts.

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