Download - ★ 수학 ★ 4 학년 1 학기 ★ 2. 곱셈과 나눗셈
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- 1(1) 500 600 = (2) 300 700 =(3) 8 5 32 = [4-1. ] 30000021000012801312028315388455
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[4-1. ] - 2(7) 270 30 = (8) 630 70 = (9) 500 50 = (12) 28 661
(11) 67 458
(10) 82 505
99106.16(13) 47363 , . ) ) ) 47363732(637)+326.8423.61
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[4-1. ] -3(14) 540. 87 ? ) ))edunet 540X8746980 540x 87 3780 432046980
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[4-1. ] -4(15) 476 35 . ? ) )
) edunet476 35 136(35 13)+6=476
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[4-1. ] -1(1) .(2) .100 100 = 10000 50 10 = 500100 200 = 50 100 = 5000100 300 = 30000 50 1000 =edunet20000 50000~
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[4-1. ] - 2@ .300 400 = 3 4 = 12600 500 = 1200003000002368816110470855080
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[4-1. ] -3@ .(1) 48 9 (2) ?48 953
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[4-1. ] -4@ .4020 = 4 2 = 2120 30 = 50 217 )60 318 15 328
25 28324))))420017450+17=2175181119
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[4-1. ] - 1@ 4 153 .[1] 16 . ?[2] 1 25 . ?edunet153 16 =99 : 9 : 19519144 25 =153 9 =144
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[4-1. ] - 2[3] 2 34 . ?[4] 3 17 . ? 144-19=323) 2312512534=9+19+23=153 51 = 51102102 17= ) 6 5117= ) 3 63
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[4-1. ] - 3@ . ?=3=5=5=33 = 7 = 4 = 9
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[4-1. ] - 4@ . . (, + = 8 . )744: 3: 5: 2: 6: 9
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, , ICT
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1. 2. 3. 4. 5. 7. 8. 6.
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http://jr.naver.com/schoolbook/su/su_main4/dan/su4_2_9.htmlhttp://www.sesri.re.kr/multimidia/prm/2001/prm/8/ef41math/intro.html , . 4 .
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