Question

Which of the following correctly shows the re-grouping strategy for solving 57 x 18?50 x 10; 7 x 10; 50 x 8; 7 x 850 x 10; 7 x 50; 50 x 8; 7 x 850 x 10; 7 x 10; 10 x 8; 7 x 810 x 8; 7 x 10; 50 x 8; 7 x 8

Answer 1

the question wnats us to find the correct regrouping strategy for solving 57 x 18

in othe r to get the correct re-grouping strategy, we must first know what it entails.

57 x 18 = 1026

so, the correct regrouping strategy will be the one that will be equal to 1026 when summed up

so,

50x10; 7x10; 50x8; 7x8

= 500 + 70 + 400 + 56

= 1026

therefore the correct option is A