F.1 Mathematics (百分數) 3

1.A 0.125*100%
=0.125*100
=12.5%

B. 0.658*100%
=0.658*100
=65.8%

C. 0.4896*100%
=0.4896*100
=48.96%

D. 0.2*100%
=0.2*100
=20%

E. 0.359*100%
=0.359*100
=35.9%

F. 1.02*100%
=1.02*100
=102%

G. 1.123*100%
=1.123*100
=112.3%

H. 2.55*100%
=2.55*100
=255%
i .15.77*100%
=15.77*100
=157.7%

2.
A. (20% + 56%)/100
=76%/100
=0.76

B. (98% - 25%)/100
=73%/100
=0.73

C. (98% + 20% - 7%)/100
=111%/100
=1.11

D. (10% x 20%)/100
=200%/100
=2

E. (50% x 50%)/100
=250%/100
=2.5

F. (20% ÷ 30%)/100
=(0.6666...)/100
=0.006666...

G. (80% ÷ 40%)/100
=2%/100
=0.02

H. (20% x 40% ÷ 10%)/100
=80%/100
=0.8

i . (90% ÷ 45% x 2%)/100
=4%/100
=0.04

1
A. 0.125x100%=12.5%
B. 0.658x100%=65.8%
C. 0.4896x100%=48.96%
D. 0.2x100%=20%
E. 0.359x100%=35.9%
F. 1.02x100%=102%
G. 1.123x100%=112.3%
H. 2.55x100%=255%
i .15.77x100%=1577%

2.
A. 20% + 56%=76%
B. 98% - 25%=73%
C. 98% + 20% - 7%=118%-7%=111%
D. 10% x 20%=200%
E. 50% x 50%=250%
F. 20% ÷ 30%=20/100x100/30=2/3%
G. 80% ÷ 40%=80/100x100/40=2%
H. 20% x 40% ÷ 10%=800/100x100/10=80%
i . 90% ÷ 45% x 2%=90/100x100/45x2%=2%x2%=4%

1.小數->百分數

A. 0.125=12.5%
B. 0.658=65.8%
C. 0.4896=48.96%
D. 0.2=20%
E. 0.359=35.9%
F. 1.02=102%
G. 1.123=112.3%
H. 2.55=255%
i .15.77=1577%
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2.
A. 20% + 56%=76%
B. 98% - 25%=735
C. 98% + 20% - 7%=111%
D. 10% x 20%=2%
E. 50% x 50%=25%
F. 20% ÷ 30%=66.67%
G. 80% ÷ 40%=2
H. 20% x 40% ÷ 10%=80%
i . 90% ÷ 45% x 2%=4%

1a12.5%
1b65.8%
1c48.96%
1d29%
1e35.9%
1f102%
1g112.3%
1h255%
1i1577%