8 × 19
looking at the answer choices, it looks like the use of the distributive
property is to be used:
= 8(10 + 9)
= 8x10 + 8x9
= 80 + 72
= 152
or
8(20 - 1)
= 8x20 - 8x1
= 160 - 8
= 152 , just like before
the choice
(8 × 20) − (8 × 1)
matches this
8 × 19 (1 point)
(8 × 10) + (8 × 1)
(8 × 20) − (8 × 1)
(8 × 20) − 1
(8 × 10) − (8 × 1)
1 answer
1 answer