Question

Which of these is the best estimate of 68 x 1 7

Answer 1

1156

Explanation:

we make 7 * 8 = 56

we retain 5

after 7 * 6 = 42 + 5 = 47

below 6 we put a 0 then after we do 1 * 8 = 8 and 1 * 6 = 6 and finally we all calculate so 476 + 680 = 1156