Our stage 4 groups have been learning how to use doubles (2+2, 4+4) to solve a problem involving near doubles (6+7, 8+9). Here are some photos of these mathematicians working so hard to use this strategy, can you see what they have done to work it out?
Did you spot their method? If not, you will have to ask one of these experts how you solve a number problem involving near doubles.
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