The side length in the y-direction is 9-6 = 3 units. (sides ab and cd)
The side length in the x-direction is 7-2 = 5 units. (sides bc and ad)
The value is 20. 10^2 = 100 and 5^1 = 5. 100/5=20
Answer:
The similar shortcut for division works because division is the opposite operation of multiplication—it “undoes” multiplication. If we move the decimal point to the right when multiplying by 10, 100, 1000 and so on, then it is quite natural that the rule for division would work the “opposite” way.
Step-by-step explanation:
