Complete: 8 × 5 = 5 × ＿.
Complete: eight times five
equals five times what.
We have to find the missing
number in this equation. Because there’s an equal sign
in the middle, we know that eight times five is equal to five multiplied by our
missing number. This array shows eight rows of
five counters. Let’s count in fives to find
the total number of counters. Five, 10, 15, 20, 25, 30, 35,
40. So we know that eight times
five is 40. And if we turn our array the
other way round to show five rows of eight, then the product will be the
same. Eight rows of five are 40, and
five rows of eight are 40. The missing number is
eight. We know that we can multiply
eight and five in any order; the product will still be 40. Eight times five is equal to
five times eight.