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Mental computation

MC_GT_T2_E4_A2_fig1

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.

Sample multiplication fact grid.

MC_GT_T2_E4_A2_fig2

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

Completed multiplication fact grid.

MC_GT_T2_E4_A2_fig3

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.

Shaded multiplication fact grid.

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