Page 184 - NUMINO TB_2B

2B ˙ · (2–‡) 2011.3.226:50PM ˘ ` 173

NUMINO

Challenge P. 59 c . 147
1 . a . 600 200 800
+ 153
b . 226 450 676 300 , 300

Unit 23. Wizard’s Puzzle 2 . a. 117 76 193, 193

b . 165 245 410, 410

c . 256 25 281, 281

P. 60~61 Challenge 4 P. 68~69
1. a. 0 6 3
8 3, 8, 5 2
2 b. 5 9, 2, 1 6, 0, 7
c . 2, 4, 1 5, 4, 3 5, 8, 3
2, 3 2 . 2, 6, 2 2, 6, 4
If the number is 2, 10 would be regrouped as 6, 8, 3
1 ten from the ones place. 6, 0, 2
5, 4, 7
Activity 1 P. 62~63
1 . 353 b . 1, 256 Unit 24. Rabbit’s Trick
2 . a . 1, 460 e . 1, 253 c . 1, 756
h . 1, 642 f . 1, 855 P. 70~71
d . 1, 565 k . 284 i . 1, 527 9
g . 1, 640 m . 847 3
j . 670
l . 573 6 or 7
It is strange because the answer can be 6 or 7 (If
Activity 2 b . 1, 306 P. 64~65 1 ten is regrouped as 10 ones).
1 . a . 1, 816
2 . 1, 605 1, 739 c . 1, 617 Activity 1 P. 72~73
1, 608 1 . 334
1, 315 1, 329 1, 209 2 . a . 4, 12, 233 b . 6, 11, 225
1, 348 1, 1, 322 1, 557 d . 3, 16, 228
1, 1, 501 c . 5, 13, 259 f . 8, 10, 335
e . 8, 14, 145 h . 3, 12, 135
Activity 3 P. 66~67 g . 5, 17, 839 j . 330
i . 3, 17, 519 l . 508
1 . a. 120 b . 216 k . 237
m . 227 Answers 173
+ 329 + 189
449 , 449 405 , 405