Mathematics for IGCSE & O level - The Four Operations (Section 9 - No. 13)
Which of the following is equal to 3.2 ÷ 0.08?
0.4
4
40
400
설명
To divide by a decimal, you can multiply both the dividend and divisor by a power of 10 to make the divisor a whole number. Thus, 3.2/0.08 is the same as 320/8, which equals 40.