|
|
| |
|
| ||
| Fractions | Ex 1.1 | Ex 1.2 |
| Ratio | Ex 2.1 | Ex 2.2 |
| Percentage | Ex 3.1 | Ex 3.2 |
| Speed | Ex 4.1 | Ex 4.2 |
|   Ex 1.1
[Note: Answers in ( / ) represents a fraction eg 1(2/3) means 1 whole and
two-third.]
A (1) 1(23/30) (2) 1(1/24) (3) 1 (4) (19/24) (5) 5(1/2)
(6) (13/15) (7) 6(16/21) (8) 1(1/5) (9) 4(1/20) (10) (8/35)
(11) (11/24) (12) (37/42) (13) (7/60) (14) (13/20) (15) (8/27)
(16) (9/16) (17) (3/56) (18) 1(7/18) (19) 1(1/49) (20) (7/24)
B (1)$76 (2)36 children (3)248 more red beads (4)75 books (5)$63
|
|   Ex 1.2
[Note: Answers in ( / ) represents a fraction eg 1(2/3) means 1 whole and
two-third.]
A (1) 1(11/40) (2) (14/15) (3) 3(5/14) (4) 3(1/15) (5) 6(2/3)
(6) (58/63) (7) (4/7) (8) (9/35) (9) 7(4/35) (10) (1/24)
(11) (1/4) (12) (17/20) (13) 1(2/3) (14) 2(7/10) (15) (3/7)
(16) (29/30) (17) (1/3) (18) 5(7/15) (19) (6/35) (20) (12/35)
B (1)$14.50 (2)27 teachers (3)(22/41) (4)5698 books (5)420,000 Chinese
|
|   Ex 2.1
[Note: Answers in ( / ) represents a fraction eg 1(2/3) means 1 whole and
two-third.]
(1a)(3/5) (1b)(3/7) (2)621 students (3)80 men (4)$240 (5)35.7 cm
(6)6.2 g (7)10:11 (8)30 cm (9)2:5 (10)$175
|
|   Ex 2.2 (1)620 apples (2)19,090 people (3)24 pens (4)24 cm² (5)54 toys (6)18 cups (7)12 girls (8)$144 (9)3:2 (10a)9:16 (10b)$18 |
|   Ex 3.1
[Note: Answers in ( / ) represents a fraction eg 1(2/3) means 1 whole and
two-third.]
A (1) (1/20) (2) (21/50) (3) (4/25) (4) (39/50)
B (1)0.9 (2)0.69 (3)0.31 (4)0.97
C (1)40% (2)72% (3)60% (4)133%
D (1)93.6 cm (2)$30 (3)37.5% (4)20% (5)34.78% (6)69.38% (7)18%
(8)1120 g
|
|   Ex 3.2
[Note: Answers in ( / ) represents a fraction eg 1(2/3) means 1 whole and
two-third.]
A (1) (3/20) (2) (29/50) (3) (2/25) (4) (3/4)
B (1)0.13 (2)0.72 (3)0.27 (4)0.85
C (1)58.33% (2)48% (3)85% (4)72%
D (1)$550,000 (2)25.5 cents (3)$3420 (4)$2840 (5)60 girls (6)6
(7)200 buttons (8)66(2/3)%
|
|   Ex 4.1
[Note: Answers in ( / ) represents a fraction eg 1(2/3) means 1 whole and
two-third.]
(1)7.5 m/s (2) 3.5 h (3)1425 m (4) (2/9) h (5) 18 km/h (6)70 km/h
(7)110 km/h (8)1 h 40 min (9)126 km/h (10)80 km/h
|
|   Ex 4.2 (1)65 m back (2)1:50 p.m. (3)2400 m (4)90 km/h (5)115.2 km/h (6)2.5 m/s (7)60 km/h (8)1 h 48 min (9)25 km/h (10)140 m/s |
©COPYRIGHT 1998-2001 Strategic Thinking Business P/L Singapore ALL RIGHTS RESERVED