Video: Adding Two Numbers up to 9

Find the missing number: 3 + 6 = _.

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Video Transcript

Find the missing number: three plus six equals what.

Here, we have a group of three counters and a group of six counters. How many counters are there all together? We already know there are three counters in this group. So we can start counting at three and add six more. Three, four, five, six, seven, eight, nine. Three and six more makes nine.

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