jab121805
jab121805
12-04-2018
Mathematics
contestada
Use mental math to multiply. 12×26
Respuesta :
sqdancefan
sqdancefan
12-04-2018
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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