跪求五年级下册递等式 100题 急啊!!!!!!1
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99x99十99
=99x(99十1)
=99x100
=9900
=(25×4)×(8×125) =52×99+52×1 =31×(100-1)
=100×1000 =52×(99+1) =31×100-31×1
=100000 =52×100 =3100-31
=5200 =3069
0.4×0.7×0.25 280+840÷24×5 6.9+4.8+3.1
=0.4×0.25×0.7 =280+35×5 =6.9+3.1+4.8
=0.1×0.7 =280+175 =10+4.8
=455 =14.8
0.456+6.22+3.78 15.89+(6.75-5.89) 2.7÷45
=0.456+(6.22+3.78) =15.89-5.89+6.75 =2.7÷3÷15
=0.456+10 =10+6.75 =0.9÷15
=10.456 =16.75 =0.06
4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75+6.48)
=4.02+0.98+5.4 =5.17-(1.8+3.2) =13.75-3.75-6.48
=5+5.4 =5.17-5 =10-6.48
=10.4 =0.17 =3.52
3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6-1.8-15.6-7.2
=3.68-2.68+7.56 =7.85-0.85+(2.34+4.66) =35.6-15.6-(1.8+7.2)
=1+7.56 =7+7 =20-9
=8.56 =14 =11
3.82+2.9+0.18+9.1 9.6+4.8-3.6 7.14-0.53-2.47
=(3.82+0.18)+(2.9+9.1) =9.6-3.6+4.8 =7.14-(0.53+2.47)
=4+12 =6+4.8 =7.14-3
=16 =10.8 =4.14
5.27+2.86-0.66+1.63 13.35+4.68-2.65 73.8-1.64-13.8-5.36
=5.27+1.63+(2.86-0.66)=13.35-2.65+4.68 =73.8-13.8-(1.64+5.36)
=7+2.2 =11+4.68 =60-7
=9.2 =15.68 =53
47.8+7.45-8.8 0.398+0.36+3.64 15.75+3.59-0.59+14.25
=47.8-8.8+7.45 =0.398+(0.36+3.64) =15.75+14.25+(3.59-0.59)
=39+7.45 =0.398+4 =30+3
=46.45 =4.398 =33
66.86-8.66-1.34 0.25×16.2×4 (1.25-0.125)×8
=66.86-(8.66+1.34) =0.25×4×16.2 =1.25×8-0.125×8
=66.86-10 =1×16.2 =10-1
=56.86 =16.2 =9
3.6×102 3.72×3.5+6.28×3.5 36.8-3.9-6.1
=3.6×(100+2) =(3.72+6.28) ×3.5 =36.8-(3.9+6.1)
=3.6×100+3.6×2 =10×3.5 =36.8-10
=360+7.2 =35 =26.8
=367.2
15.6×13.1-15.6-15.6×2.1 4.8×7.8+78×0.52 32+4.9-0.9
=15.6×[(13.1-2.1) -15.6×1] =4.8×7.8+7.8×5.2 =32+(4.9-0.9)
=15.6×[11-1] =7.8×(5.2+4.8) =32+4
=15.6×10 =7.8×10 =36
=156 =78
4.8×100.1 56.5×9.9+5.65 7.09×10.8-0.8×7.09
=4.8×100+4.8×0.1 =56.5×(9.9+0.1) =7.09×(10.8-0.8)
=480+0.48 =56.5×10 =7.09×10
=480.48 =565 =70.9
25.48-(9.4-0.52) 4.2÷3.5 320÷1.25÷8
=25.48+0.52-9.4 =4.2÷7÷0.5 =320÷(1.25×8)
=26-9.4 =0.6÷0.5 =320÷10
=16.6 =1.2 =32
18.76×9.9+1.876 3.52÷2.5÷0.4 3.9-4.1+6.1-5.9
=18.76×(9.9+0.1) =3.52÷(2.5×0.4) =(3.9+6.1)-(4.1+5.9)
=18.76×10 =3.52÷1 =10-10
=187.6 =3.52 =0
5.6÷3.5 9.6÷0.8÷0.4 4.2×99+4.2
=5.6÷7÷0.5 =9.6÷(0.8×0.4) =4.2×(99+1)
=0.8÷0.5 =9.6÷0.32 =4.2×100
=1.6 =30 =420
17.8÷(1.78×4) 0.49÷1.4 1.25×2.5×32
=17.8÷1.78÷4 =0.49÷7÷0.2 =1.25×8×2.5×4
=1÷4 =0.7÷0.2 =10×10
=0.25 =3.5 =100
15.2÷0.25÷4 0.89×100.1 146.5-(23+46.5)
=15.2÷(0.25×4) =0.89×100+0.89×0.1 =146.5-46.5-23
=15.2÷1 =89+0.089 =100-23
=15.2 =89.089 =77
3.83×4.56+3.83×5.44 4.36×12.5×8 9.7×99+9.7
=3.83×(4.56+5.44) =4.36×(12.5×8) =9.7×(99+1)
=3.83×10 =4.36×100 =9.7×100
=38.3 =436 =970
27.5×3.7-7.5×3.7 8.54÷2.5÷0.4 0.65×101
=(27.5-7.5)×3.7 =8.54÷(2.5×0.4) =0.65×(100+1)
=20×3.7 =8.54÷1 =0.65×100+0.65×1
=74 =8.54 =65+0.65
=65.65
(45.9-32.7)÷8÷0.125 3.14×0.68+31.4×0.032 2.5×2.4
=(45.9-32.7)÷(8×0.125) =3.14×0.68+3.14×0.32 =2.5×2+2.5×0.4
=13.2÷1 =3.14×(0.68+0.32) =5+1
=13.2 =3.14×1 =6
=3.14
5.6÷1.25÷0.8÷2.5÷0.4 7.2×0.2+2.4×1.4 8.9×1.01
=5.6÷(1.25×0.8)÷(2.5×0.4) =1.44+3.36 =8.9×1+8.9×0.01
=5.6÷1÷1 =4.8 =8.9+0.089
=5.6 =8.989
3.9×2.7+3.9×7.3 18-1.8÷0.125÷0.8 12.7×9.9+1.27
=3.9×(2.7+7.3) =18-1.8÷(0.125×0.8) =12.7×(9.9+0.1)
=3.9×10 =18-1.8÷0.1 =12.7×10
=39 =18-18 =127
=0
21×(9.3-3.7)-5.6 15.02-6.8-1.02 5.4×11-5.4
=21×5.6-5.6 =15.02-1.02-6.8 =5.4×(11-1)
=117.6-5.6 =14-6.8 =5.4×10
=112 =7.2 =+54
2.3×16+2.3×23+2.3 9.43-(6.28-1.57) 3.65×4.7-36.5×0.37
=2.3×(16+23+1) =9.43+1.57-6.28 =3.65×4.7-3.65×3.7
=2.3×40 =11-6.28 =3.65×(4.7-3.7)
=92 =4.72 =3.65×1
=3.65
46×57+23×86 13.7×0.25-13.7÷4 2.22×9.9+6.66×6.7 =2622+1978 =13.7÷4-13.7÷4 =21.978+44.622
=4600 =0 =66.6
101×0.87-0.91×87 10.7×16.1-15.1×10.7 0.79×199
=101×0.87-91×0.87 =(16.1-15.1)×10.7 =0.79×(200-1)
=(101-91)×0.87 =1×10.7 =0.79×200-0.79×1
=10×0.87 =10.7 =158-0.79
=8.7 =157.21
4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24
=(4.8+5.2)+(8.63+0.37) =5.93+(0.19+2.81) =1.76+3.24+0.195
=10+9 =5.93+3 =5+0.195
=19 =8.93 =5.195
2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.98
=(2.35+7.65)+(1.713+0.287) =1.57+7.43+0.245 =6.02+1.98+3.6
=10+2 =9+0.245 =8+3.6
=12 =9.245 =11.6
0.134+2.66+0.866 1.27+3.9+0.73+16.1 7.5+4.9-6.5
=0.134+0.866+2.66 =(1.27+0.73)+(3.9+16.1) =7.5-6.5+4.9
=1+2.66 =2+20 =1+4.9
=3.66 =22 =5.9
3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-2.45-1.55
=3.07-(0.38+1.62) =(1.29+2.71)+(3.7+6.3) =8-(2.45+1.55)
=3.07-2 =4+10 =8-4
=1.07 =14 =4
3.25+1.79-0.59+1.75 23.4-0.8-13.4-7.2 0.32×403
=(3.25+1.75)+(1.79-0.59)=(23.4-13.4)-(0.8+7.2)=0.32×(400+3)
=5+1.2 =10-8 =0.32×400+0.32×3
=6.2 =2 =128+0.96
=128.96
3.2+0.36+4.8+1.64 1.23+3.4-0.23+6.6 0.25×36
=(3.2+4.8)+(0.36+1.64) =(1.23-0.23)+(3.4+6.6) =0.25×4×9
=8+2 =1+10 =1×9
=10 =11 =9
格式有点问题,你自己调吧
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