Form 2 lines at the front of the classroom. Your teacher will say a number between 1 and 50 to the pair of learners at the front of the line. The first learner to double the number moves to the back of the line. The other learner must sit down. Continue until there is only 1 learner left standing. This learner is the Doubling Champion! You can also play this game by halving the numbers.
Adding pairs of 2-digit and 3-digit numbers
Look at these additions. Use estimates to sort them into the boxes below. Do not work out the answers. Explain your thinking to your partner. 20 + 80 45 + 45 52 + 50 29 + 84 43 + 36 32 + 33 75 + 25 79 + 18 68 + 45
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03/05/2022 10:18
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