Page 177 - TB_5B
P. 177
b . 42.72 6 = 7.12 Unit 23. Say Goodbye to Decimals!
7.12 cm
P. 58~59
Activity 2 P. 52~53 0.4 (0.2 0.5) = 4
1 . a . 0.8
b . 0.6 c . 0.9 Activity 1 P. 60~61
d . 0.75 e . 0.64 f . 0.92 1 . b . 1.5
2 . 17.76 24 = 0.74 e . 1.266 c . 1.3 d . 0.99
2 . a . 36.12
The weight of 1 strawberry is 0.74 pound. f . 0.89
3 . a . 1.92 b . 1.35 c . 5.45 b . 38.966
d . 1.75 e . 1.75 f . 1.25
2 . 170.5 62 = 2.75 Activity 2 P. 62~63
1 . (0. 5 0. 2) 0. 1 3
The windmill spins 2.75 times per minute.
0.3 0. 5 0. 2) 3
Activity 3 P. 54~55 (0.6 0.3) (0.5 0.2) 3
1 . Sample Answer Quotient 0.75 0. 55 0. 45) 0.25 7.75
Picked Numbers Division Sentence 4.315 Activity 3 P. 64~65
1.445 1 . b . 2.2
2, 3, 6, 8 8.63 2 0.465 c . 3.2
4, 5, 7, 8 5.78 4 4.59 d . 7.86
2, 3, 7, 8 3.72 8 3.825 2 . b . 679
1, 2, 8, 9 9.18 2
2, 5, 6, 7 7.65 2 d . 7.98
c . 2.72
Challenge b . 12 P. 56~57
1. a. 9
c . 36
2 . a . 8.9 b . 7.9 c . 2.7 Challenge P. 66~67
3 . a . 35 b . 15 c . 25
1 . b . The area of the colored triangle is
4 . a . 3.60 0.24 = 15
1
15 pieces 3 of the whole triangle.
b . 34.68 2.89 = 12 ABC 4.8 5 2 12
ACD 12 3 4
12 yd 4 cm2
d . The distance of the ball traveled is shown
below.
20 (20 0.6) 2 (20 0.6 0.6) 2
= 20 24 14.4
= 58.4
58.4 m
166
7.12 cm
P. 58~59
Activity 2 P. 52~53 0.4 (0.2 0.5) = 4
1 . a . 0.8
b . 0.6 c . 0.9 Activity 1 P. 60~61
d . 0.75 e . 0.64 f . 0.92 1 . b . 1.5
2 . 17.76 24 = 0.74 e . 1.266 c . 1.3 d . 0.99
2 . a . 36.12
The weight of 1 strawberry is 0.74 pound. f . 0.89
3 . a . 1.92 b . 1.35 c . 5.45 b . 38.966
d . 1.75 e . 1.75 f . 1.25
2 . 170.5 62 = 2.75 Activity 2 P. 62~63
1 . (0. 5 0. 2) 0. 1 3
The windmill spins 2.75 times per minute.
0.3 0. 5 0. 2) 3
Activity 3 P. 54~55 (0.6 0.3) (0.5 0.2) 3
1 . Sample Answer Quotient 0.75 0. 55 0. 45) 0.25 7.75
Picked Numbers Division Sentence 4.315 Activity 3 P. 64~65
1.445 1 . b . 2.2
2, 3, 6, 8 8.63 2 0.465 c . 3.2
4, 5, 7, 8 5.78 4 4.59 d . 7.86
2, 3, 7, 8 3.72 8 3.825 2 . b . 679
1, 2, 8, 9 9.18 2
2, 5, 6, 7 7.65 2 d . 7.98
c . 2.72
Challenge b . 12 P. 56~57
1. a. 9
c . 36
2 . a . 8.9 b . 7.9 c . 2.7 Challenge P. 66~67
3 . a . 35 b . 15 c . 25
1 . b . The area of the colored triangle is
4 . a . 3.60 0.24 = 15
1
15 pieces 3 of the whole triangle.
b . 34.68 2.89 = 12 ABC 4.8 5 2 12
ACD 12 3 4
12 yd 4 cm2
d . The distance of the ball traveled is shown
below.
20 (20 0.6) 2 (20 0.6 0.6) 2
= 20 24 14.4
= 58.4
58.4 m
166
