456
x 2
-----
To solve this problem, follow these steps:
STEP ONE: multiply bottom number by ones digit of top number.
6 x 2 = 12
STEP TWO: carry and bring down.
1
456
x 2
-----
2
STEP THREE: multiply bottom number by tens digit and add carried number.
2 x 5 + 1 = 11
STEP FOUR: carry and bring down.
11
456
x 2
-----
12
STEP FIVE: multiply bottom number by hundreds digit and add carried number.
2 x 4 + 1 = 9
STEP SIX: bring down.
11
456
x 2
-----
912