Answer:
To find 40% of a number, you can multiply the number by 0.4 or divide it by 2.5.
Using this method, we get:
40% of 100 is 40 (100 x 0.4 or 100 ÷ 2.5)
40% of 110 is 44 (110 x 0.4 or 110 ÷ 2.5)
40% of 140 is 56 (140 x 0.4 or 140 ÷ 2.5)
40% of 120 is 48 (120 x 0.4 or 120 ÷ 2.5)
Therefore, 40% of 100 is 40, 40% of 110 is 44, 40% of 140 is 56, and 40% of 120 is 48.