几个简便计算 六年级的 不会 拜托了 详细点 还有过程
1.14.8x0.362+1.48x6.382.(0.65x57.4+0.574x35-57.4)/33.0.666x0.7+0.222x0.94.27.19+18.68...
1.14.8x0.362+1.48x6.38 2. (0.65x57.4+0.574x35-57.4)/3 3. 0.666x0.7+0.222x0.9 4. 27.19+18.68+27.81-10.38-5.48-0.62 5.808x0.125-1600/16 6.11.8x43-860x0.09 7.3.49+4.47+3.51+2.38+4.53+2.62
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解:
1.14.8x0.362+1.48x6.38
=1.48*3.62+1.48*6.38
=1.48*(3.62+6.38)
=1.48*10
=14.8
2. (0.65x57.4+0.574x35-57.4)/3
=(65*0.574+0.574*35-0.574*100)/3
=[0.574*(65+35-100)]/3
=0/3
=0
3. 0.666x0.7+0.222x0.9
=0.666*0.7+0.666*0.3
=0.222*(0.7+0.3)
=0.222
4. 27.19+18.68+27.81-10.38-5.48-0.62
=27.19+27.81+18.68-(10.38+0.62-5.48)
=55+18.68-16.48
=55+2.2
=57.2
5.808x0.125-1600/16
=(800+8)*0.125-100
=800*0.125+8*0.125-100
=100+1-100
=1
6.11.8x43-860x0.09
=11.8*43-20*43*0.09
=43*(11.8-20*0.09)
=43*10
=430
7.3.49+4.47+3.51+2.38+4.53+2.62
=(3.49+3.51)+(4.47+4.53)+(2.38+2.62)
=7+9+5
=21
1.14.8x0.362+1.48x6.38
=1.48*3.62+1.48*6.38
=1.48*(3.62+6.38)
=1.48*10
=14.8
2. (0.65x57.4+0.574x35-57.4)/3
=(65*0.574+0.574*35-0.574*100)/3
=[0.574*(65+35-100)]/3
=0/3
=0
3. 0.666x0.7+0.222x0.9
=0.666*0.7+0.666*0.3
=0.222*(0.7+0.3)
=0.222
4. 27.19+18.68+27.81-10.38-5.48-0.62
=27.19+27.81+18.68-(10.38+0.62-5.48)
=55+18.68-16.48
=55+2.2
=57.2
5.808x0.125-1600/16
=(800+8)*0.125-100
=800*0.125+8*0.125-100
=100+1-100
=1
6.11.8x43-860x0.09
=11.8*43-20*43*0.09
=43*(11.8-20*0.09)
=43*10
=430
7.3.49+4.47+3.51+2.38+4.53+2.62
=(3.49+3.51)+(4.47+4.53)+(2.38+2.62)
=7+9+5
=21
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1.14.8×0.362+1.48×6.38
=1.48×3.62+1.48×6.38
=1.48×(3.62+6.38)
=1.48×10
=14.8
2.(0.65×57.4+0.574×35-57.4) ÷3
=(0.65×57.4+57.4×0.35-57.4) ÷3
=57.4 ×(0.65+0.35-1) ÷3
=57.4×0÷3
=0
3. 0.666×0.7+0.222×0.9
=0.666×0.7+0.222×3×0.3
=0.666×0.7+0.666×0.3
=0.666×(0.7+ 0.3)
=0.666×1
=0.666
4. 27.19+18.68+27.81-10.38-5.48-0.62
=(27.19+27.81)+(18.68-5.48)-(10.38+0.62)
=55+13.2-11
=57.2
5.808×0.125-1600÷16
=101×(8×0.125)-1600÷16
=101×1- 100
=1
6.11.8×43-860×0.09
=11.8×43-43×20×0.09
=11.8×43-43×1.8
=43×(11.8-1.8)
=43×10
=430
7.3.49+4.47+3.51+2.38+4.53+2.62
=(3.49+3.51)+(4.47+4.53)+(2.38+2.62)
=7+9+5
=21
=1.48×3.62+1.48×6.38
=1.48×(3.62+6.38)
=1.48×10
=14.8
2.(0.65×57.4+0.574×35-57.4) ÷3
=(0.65×57.4+57.4×0.35-57.4) ÷3
=57.4 ×(0.65+0.35-1) ÷3
=57.4×0÷3
=0
3. 0.666×0.7+0.222×0.9
=0.666×0.7+0.222×3×0.3
=0.666×0.7+0.666×0.3
=0.666×(0.7+ 0.3)
=0.666×1
=0.666
4. 27.19+18.68+27.81-10.38-5.48-0.62
=(27.19+27.81)+(18.68-5.48)-(10.38+0.62)
=55+13.2-11
=57.2
5.808×0.125-1600÷16
=101×(8×0.125)-1600÷16
=101×1- 100
=1
6.11.8×43-860×0.09
=11.8×43-43×20×0.09
=11.8×43-43×1.8
=43×(11.8-1.8)
=43×10
=430
7.3.49+4.47+3.51+2.38+4.53+2.62
=(3.49+3.51)+(4.47+4.53)+(2.38+2.62)
=7+9+5
=21
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1. =14.8 x 0.362 + 14.8 x 0.638 2. =(0.65 x 57.4 + 57.4 x 0.35 -57.4 x1)/3
=14.8 x (0.362 +0.638) =57.4 x (0.65 + 0.35 -1)/3
=14.8 x 1 =57.4 x 0 /3
=14.8 =0 /3=3
7. =3.49+3.51+(4.47+4.53)+(2.38+2.62 )
=7+ 8 +5
=20
5. =(800+8) x0.125 -1600/16 4.(27.19+27.81+18.68)-(10.38+0.62 +5.48)
=800 x 0.125 + 8 x 0.125 -100 =自己算
=100+1-100
=1
=14.8 x (0.362 +0.638) =57.4 x (0.65 + 0.35 -1)/3
=14.8 x 1 =57.4 x 0 /3
=14.8 =0 /3=3
7. =3.49+3.51+(4.47+4.53)+(2.38+2.62 )
=7+ 8 +5
=20
5. =(800+8) x0.125 -1600/16 4.(27.19+27.81+18.68)-(10.38+0.62 +5.48)
=800 x 0.125 + 8 x 0.125 -100 =自己算
=100+1-100
=1
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1. 14.8x(0.362+0.638)=14.8 ; 2. <57.4x(0.65+0.35-1)>/3=0 3. 0.666x0.7+0.666x0.3=0.666 ; 4. (27.19+27.81)+18.68-(10.38+5.48+0.62)=55+18.68-16.48=57.2 5. 808x0.125-100=101-100=1 6.11.8x43-43x20x0.09=43x(11.8+1.8)
7. (3.49+3.51)+(4.47+4.53)+(2.62+2.38)
7. (3.49+3.51)+(4.47+4.53)+(2.62+2.38)
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3.49+4.47+3.51+2.38+4.53+2.62
=(3.49+3.51)+(4.47+4.53)+(2.38+2.62)
=7+9+5
+21
=(3.49+3.51)+(4.47+4.53)+(2.38+2.62)
=7+9+5
+21
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童鞋,这个问题你还是去问问家长或者向老师请教,实在不行就找个大哥哥大姐姐当面问。
追问
就是因为不会才提问的
追答
这个问题要当面请教,网上说不清。
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