668
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64 multiplied by 12 equals 768. This can be calculated by multiplying the units digits (4 and 2) to get 8, then multiplying the tens digits (6 and 1) to get 6, and finally combining the results to get 768.
1.) Multiply 2 times 64
2*64=128
Then take the first number and multiply it by 10,
1*10=10
2.)Take the new number and multiply it by 64
10*64=640
3.) add the two new numbers together
128+640=768
(*)=times
64
12*
128
640+
768
64
The first ten positive integer multiples of 64 are:1 x 64 = 642 x 64 = 1283 x 64 = 1924 x 64 = 2565 x 64 = 3206 x 64 = 3847 x 64 = 4488 x 64 = 5129 x 64 = 57610 x 64 = 640
58
1" = 2.54 cm (exactly) 1' = 12" ⇒ 5'4" = 5 x 12" = 4" = 64" = 64 x 2.54 cm = 162.56 cm ≈ 162.5 cm (to nearest 1/2 cm)
64 = 100% 8 = X% X = 8x100 ÷ 64 X = 12.5%