Calculate each of the following and express the answer in percentage.
1.40%×40%
2.25%×50%
3.2×50%÷10%
4.75%×120%÷150%
5.40%×240%-56%
6.(55%+25%)×50%
7.45%+4×20%
8.(255%-165%)÷150%
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percentages
2011-08-16 7:29 am
回答 (2)
2011-08-16 7:59 am
✔ 最佳答案
1.40% x 40%
= 40% x 0.4
= 16%
2.
25% × 50%
=25% x 0.5
= 12.5%
3.
2 × 50% ÷ 10%
= 100% ÷ 0.1
= 1000%
4.
75% × 120% ÷ 150%
= 75% x 1.2 ÷ 1.5
= 60%
5.
40% × 240% - 56%
= 40% × 2.4 - 56%
=96% - 56%
= 40%
6.
(55% + 25%) × 50%
=80% x 0.5
= 40%
7.
45% + 4 × 20%
=45% + 80%
= 125%
8.
(255% - 165%) ÷ 150%
= 90% ÷ 1.5
= 60%
參考: Adam
2011-08-16 7:56 am
將percentage convert to decimals 咪得lor......
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