Page 177 - NUMINO TB_3A
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3˙—‡ -A˙ · 2–‡ 2011.3.22 9:31 PM ˘ ` 166 PDF_In 2540DPI 100LPI T
Activity 2 P. 16~17 2 . a . Largest: 4,231
1 . Sample Answers Smallest: 1,243, 1,324
3, 1, 5, 9, 9,531 b . Largest: 8,730, 8,703, 8,370
1, 0, 7, 4, 7,410
4, 5, 1, 8, 8,541 Smallest: 3,078, 3,087, 3,708
7, 1, 2, 3, 7,321
9, 0, 4, 2, 9,420
2 . a . 1,238 Unit 03. Addition Puzzles
b . 2,045 P. 22~23
c . 1,267 Sample Answers 4321
+ 5679
d . 8,009 431 790 4567 10,000
+ 568 + 210 + 3210
Since you cannot place 0 for the 1,000
999 7,777
thousands place, write the smallest number
excluding 0 in the thousands place, and Activity 1 P. 24~26
then put rest of the numbers in order from 1 . a . 1, 2
least to greatest, including 0.
1, 4
Activity 3 P. 18~19 1, 3
1 . a . 4,000, 5,000, 6,000, 7,000, 8,000 2
2, 3, 4, 2, 2,342
b . 9,400, 9,500, 9,600, 9,700, 9,900 2 . 42, 342, 2342
c . 9,930, 9,940, 9,960, 9,970, 9,980, 9,990 3 . a . 1; 4812
d . 9,994, 9,995, 9,996, 9,997, 9,998, 9,999 b . 1; 8556
e . 10,000 c . 1; 7043
d . 1, 1; 5034
2 . a . 1,253 1,263 1,273 1,283 e . 1, 1; 5220
2,253 3,253 4,253
1,253 1,353 1,453 1,553 f . 1, 1, 1; 3733
1,253
b . 2,867 3,867 4,867 5,867 4 . A 3,898, M 7,777, O 6,878
5,667 5,767 5,867
5,567 5,847 5,857 5,867 H 8,787, L 7,758, U 8,716, C 8,183
5,837 B 9,600, A 9,222, D 9,100, R 4,634
BLACK BOARD
Challenge P. 20~21
1 . 7,220, 7,202, 7,022, 2,720, 2,702, Activity 2 P. 27~29
2,270, 2,207, 2,072, 2,027 1 . Sample Answers
59, 8631
+ 7420
16,051
166
Activity 2 P. 16~17 2 . a . Largest: 4,231
1 . Sample Answers Smallest: 1,243, 1,324
3, 1, 5, 9, 9,531 b . Largest: 8,730, 8,703, 8,370
1, 0, 7, 4, 7,410
4, 5, 1, 8, 8,541 Smallest: 3,078, 3,087, 3,708
7, 1, 2, 3, 7,321
9, 0, 4, 2, 9,420
2 . a . 1,238 Unit 03. Addition Puzzles
b . 2,045 P. 22~23
c . 1,267 Sample Answers 4321
+ 5679
d . 8,009 431 790 4567 10,000
+ 568 + 210 + 3210
Since you cannot place 0 for the 1,000
999 7,777
thousands place, write the smallest number
excluding 0 in the thousands place, and Activity 1 P. 24~26
then put rest of the numbers in order from 1 . a . 1, 2
least to greatest, including 0.
1, 4
Activity 3 P. 18~19 1, 3
1 . a . 4,000, 5,000, 6,000, 7,000, 8,000 2
2, 3, 4, 2, 2,342
b . 9,400, 9,500, 9,600, 9,700, 9,900 2 . 42, 342, 2342
c . 9,930, 9,940, 9,960, 9,970, 9,980, 9,990 3 . a . 1; 4812
d . 9,994, 9,995, 9,996, 9,997, 9,998, 9,999 b . 1; 8556
e . 10,000 c . 1; 7043
d . 1, 1; 5034
2 . a . 1,253 1,263 1,273 1,283 e . 1, 1; 5220
2,253 3,253 4,253
1,253 1,353 1,453 1,553 f . 1, 1, 1; 3733
1,253
b . 2,867 3,867 4,867 5,867 4 . A 3,898, M 7,777, O 6,878
5,667 5,767 5,867
5,567 5,847 5,857 5,867 H 8,787, L 7,758, U 8,716, C 8,183
5,837 B 9,600, A 9,222, D 9,100, R 4,634
BLACK BOARD
Challenge P. 20~21
1 . 7,220, 7,202, 7,022, 2,720, 2,702, Activity 2 P. 27~29
2,270, 2,207, 2,072, 2,027 1 . Sample Answers
59, 8631
+ 7420
16,051
166
