1.0.0 18 0.98 1.2 0.2 15 0.3539

2.52% 8% 30% 0.7% 109%

3. 1 3

5 6 0.833=83.3

1 1 6 1.833= 183.3

7 13 0.538=53.8

20 3 1.538= 153.8

4.40%= two fifths =0.4

60%= three fifths =0.6

55%= one in eleven =0.55

70%= seven tenths =0.7

24%= 6/25 =0.24

100%= 5/5 = 1

5.

1 10÷(5+6)= 10 10×5=50 10×6=60

6.

30÷( 1+2+3)=5 1×5=5 2×5= 10 3×5= 15

P 14

1.

The number of survivors in the total number of survivors.

Oil production: total amount of peanuts, oil production of total amount of peanuts.

Total rice, total wheat, total flour

2.

100%

99%

42%

72%

12%

3.

( 1).90%× 100%=90%

(2).98%× 100%=98%

P 15

1.

(1). 100× quarter =25 (2).200× three fifths = 120.

(3) 100/4 = 125

2. 1800÷3000= 60%

3.3000× 20/13 = 1950

4.3500÷70%=5000

37.5% 50% 37.5% What is 50% of 80 square meters?

P 16

1.

( 1).80×0.06=4.8

(2).48÷800× 100%=6%

(3) .25/20 =500

2.

( 1).90% 100% 45

(2)90% 200 100

3.

( 1). 15÷ 100× 100%= 15%

(2).( 1 15- 100)÷ 100× 100%= 15%

(3).( 1 15- 100)× 100%= 15%