Use mental math to multiply. 12×26

1 answer:

4 0

There are many ways to do this.
1. 12 * 26 = (10 +2)*26 = 260 +52 = 312

2. 12*26 = (10*20) +10*(1*6 +2*2) +(2*6) = 200 +100 +12 = 312

3. 12*26 = 4*3*26 = 4*78 = 2*156 = 312

4. 12*26 = 3*4*26 = 3*2*52 = 3*104 = 312

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