Page 182 - NUMINO TB_2B

2B ˙ · (2–‡) 2011.3.226:50PM ˘ ` 171

NUMINO

Activity 3 P. 46~47 c . 80 ,
1 . b . 10 , 10 , 5 , 5 , 5
50 25 5
c . 10 , 5 , 5 , 5 , 5
d . 10 , 5 , 5 , 5 , 1
2 . 4 coins 10 5 5 5

5 coins 5 5 5 5 5 Unit 22. Make Seven Hundred

6 coins P. 50~51

7 coins 10 10 1 1 1 1 1

8 coins 10 5 5 1 1 1 1 1

Activity 4 P. 48~49
1 . b . 40 ,

25 10 600 +100 =700
5

500 +200 =700

c . 60 , 350 640 220 230 160

10 5

2 . a . 70 , 550 540 420 610 130

50 10 10 220+ 550 =770 640 +130 =770

230 + 540 =770 160 + 610 =770

b . 75 ,

Activity 1 P. 52~53

50 25 1 . a . 600 b . 800

c . 560 d . 790

2 . 8, 8, 7, 788

To find the answer, add the numbers in each
place.

Answers 171