400 x 28 = 11200
100 x 400 is equal to 40,000
2 x 2 x 2 x 2 x 5 x 5 = 400
400 x 80 = 4 x 100 x 8 x 10 = 4 x 8 x 1000 = 32000
Simple interest 400 + (4 x 5 x 8) = 400 + 160 = 560; Compound interest 400 x 1.085 = 400 x 1.47* = 588. *Actually the multiplier is 1 .469
400 = 1 x 400 400 = 2 x 200 400 = 4 x 100 400 = 5 x 80 400 = 8 x 50 400 = 10 x 40 400 = 16 x 25 400 = 20 x 20
4003 = 400 x 400 x 400 = 64000000
x * 1600 = 400 x = 400 / 1600 x = 1/4 x = 25% ■
The prime numbers (factors) of 400 are: 2 and 5
70% of $400 = 70% x $400 = 0.70 x $400 = $280
10 x 400 = 4,000
400 x 28 = 11200
400 x 10 = 4000
400 x 400 does not equal 4000 because 4 x 4 = 16 so the answer would be 160000. With the 2 zeros from the 2 numbers yw
7 x 400 = 2800.
4 x 100 = 400
400 x 52 = 20,800.