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Media > TDT > Mental computation > MC_GT_T2_E1_A3_fig1

MC_GT_T2_E1_A3_fig1

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How many tiles do I need? A partial 6 by 5 array showing only the far left column and top row.

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A string of beads, alternating every ten beads from green to pink. The problem is to add 27 to 58. First peg is at 58 with a jump of 20 to reach 78, then a jump of 2 to reach 80 then a jump of 5 to reach the answer of 85.

MC_GT_T1_E3...

10 by 10 multiplication grid with different colours showing the zero products, the ones products, the double ones, the double twos, the double threes, the double fours, and the relating to tens.

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10 by 10 multiplication grid with all products shown, and products of 28, 48 and 72 circled.

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10 by 10 multiplication grid with product of 15 shown as 3 by 5 and 5 by 3, and product of 24 shown as 6 by 4 and 4 by 6.

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25 juice boxes arranged in a 5 by 5 array.

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16 chocolates arranged in a 4 by 4 array.

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Six eggs in a carton arranged in a 2 by 3 array.

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