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5.У԰32ð482510֣

(1)жٿã (2)ٶٿã (3)ٿã

(4)Ͱжٿã (5)һжٿã

678ðײˣ54ãмã3֣

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ѼկСѧһ꼶ڶѧѧĩ⣨23

ѧУ ༶ ÷֣ һա32֣

1.3ʮ2һ( )58( )ʮ( )һ

274е7( )λϣʾ7( )4( )λϣʾ4( ) 3.һʮλ6λ2( ) 4.д ʮ ʮ һ ʮ ʮ ( ) ( ) ( ) ( ) ( ) 5.70ǰһ( )һ( ) 6.5=( ) 36=( )( ) 1Ԫ=( ) 8Ԫ5=( ) 2+8=( )

1Ԫ-7=( ) 4Ԫ+8=( )Ԫ( ) 54-8=( )( )

73510( ) 2063( ) 579( ) 647( )

8Ҫ( )2֣ 49 38 75 57 84 63 100 36 (

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жϡ(ԵĴ̣Ĵ) 4֣ 1.λλ( ) 2.1ԪǮ10Ǯ١( )

3.λʦ48ѧȥ԰Σ48Ʊ( ) 4.С÷24飬ͬѧ1034顣( )

ʽӴСһš2֣ 4+58 72-5 36-7 98-80 86+9

ġ㡣21֣ 1.㡣 40+53= 100-20= 4+38= 93-70= 60+40= 79+7= 54+20-30= 100-(30+50)= 2.ʽ㡣12֣ 35+24= 46+38=

82-36= 73-47=

46+30= 72-40= 85-9= 93-70= 39+40=

37-8+60= 46+(38+2)= 59+28= 37+45=

13-5= 85-9= 58-30= 65-8= 47+5-30= 95-48=

65+(59-50)= 69+24=

64-29= 90-27= 34+27= 94+74=

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