Page 193 - NUMINO TB_3A

3˙—‡ -A˙ · 2–‡ 2011.3.22 9:32 PM ˘ ` 182 PDF_In 2540DPI 100LPI T

Activity 1 P. 148~149 c . 11: 00 A.M.
d . 8: 00 P.M.
1 . b. 10:15 P. 154~155
Challenge
The time interval is 2 hours. 1 . 6 hours
2 . a. 7 hours
c.
11 12 1 b . 5 hours
10 2 3 . a. 5 hours
93
84 b . 1 hours
765 c . 6 hours
d . 5 hours
The time interval is 30 minutes.

d.
11 12 1
10 2
93
84
765

The time interval is 10 minutes.

e . 4:30

The time interval is 20 minutes.

f.
11 12 1
10 2
93
84
765

The time interval is 40 minutes.

Activity 2 P. 150~151

1 . a. 35, 30, 25, 20, 15, 35 minutes

b . 10, 15, 20, 25, 30, 30 minutes

2 . 40 minutes

50 minutes
40 minutes
45 minutes
35 minutes

Activity 3 P. 152~153
1 . b. 2 hours

c . 40 minutes
2 . a. 1 hours

b . 2 hours and 30 minutes

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