Calcul Mental - Multiplication

1 x 1 = 0 1 2 5
10 x 250 = 2 500 25 25 000 250 000
17 x 15 = 170 238 255 272
150 x 250 = 31 500 37 500 40 500 41 600
1 x 1 x 2 x 2 = 1 2 4 6
150 x 2 x 3 = 1 200 600 800 900

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