Page 184 - NUMINO TB_4B

NUMINO

1 . a . Sample Answers 2 . a . 0.3 b . 3.9
e . 11.6, 3.2, 7.4, 15.8
0.3, 0.6, 0.9, 1.2, 1.5, 1.8 (Increase by 0.3) c . 6.5, 1.2, 1.9, 7.2
0.15, 0.25, 0.35, 0.45, 0.55, 0.65
(Increase by 0.1) 3 . a . 0.8 0.6 0.2

b . Sample Answers 0.2 m

1.25, 1.50, 1.75, 2.00, 2.25, 2.50 (Increase b . 1.6 0.4 1.2
by 0.25)
1.1, 2.3, 3.5, 4.7, 5.9, 7.1, 8.3, 9.5 (Increase 1.2 L
by 1.2)

Activity 2 P. 34~35

65, 38, 27, 0.27 c . 0.07
f . 0.44
Unit 20. Which Difference Is Larger? 1 . a . 0.62 b . 0.26 c . 31.75
f . 8.9
P. 30~31 d . 0.44 e . 0.16

6, 0.6, 2 . a . 1.97 b . 3.39

0.2 d . 2.31 e . 3.93
0.2, 0.8
3 . a . 0.37 0.26 0.11
31, 0.31,
0.11 kg

b . 1.67 0.24 1.43

1.43 m

Activity 3 P. 36~37

20, 3, 17, 1.7

0.8 0.2 0.77 0.27 0.81 0.42 0.75 0.51 1 . a . 2.8 b . 4.5 c . 5.3

d . 12.5 e . 8.65 f . 2.68

0.97 0.62 0.75 0.15 0.99 0.85 0.63 0.24 2 . a . 0.17 b . 4.71 c . 5.78

d . 8.02 e . 4.49 f . 1.074

0.6 0.1 0.37 0.23 0.56 0.21 0.59 0.35 3 . a . 1.6 0.13 1.47

1.47 kg

Activity 1 P. 32~33 b . 2.3 1.56 0.74

9, 7, 0.7 c . 0.8 The pen is more expensive by $0.74.
f . 8.9
1 . a . 0.7 b . 0.5 Activity 1 P. 38~39
d . 0.9 e . 0.8
3.6 2.57 1.03
9.03 8.04 0.99, 4.5 3.49 1.01

Answers 173