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4.6×2.8+0.28×54怎么样简便?
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推荐答案 2020-01-04
解:4.6*2.8+0.28*5.4
=46*0.28+0.28*5.4
=0.28*(46+54)
=0.28*100
=28
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其他回答
第1个回答 2022-09-21
此题运用乘法分配律计算:(4.6+5.4)×2.8=10×2.8=28
第2个回答 2022-09-21
=0.28×10×4.6+0.28×54=0.28×(46+54)=0.28×100=28
第3个回答 2022-09-20
2.8十0.28×54 =46X0.28十0.28X54 二0.28X(46十54)二0.28X100 =28
相似回答
4.6×2.8+0.28×54
的
简便
计算?
答:
二
0.28
X(46十
54
)二0.28X100 =28
4.6×2.8+
0点28
×54简便
计算?
答:
4.6×2.8+0.28×54
=4.6×2.8+
2.8×
5.4 =2.8×(
4.6+
5.4)=2.8×10 =28
4.6×2.8+0.28×54
答:
4.6×2.8+0.28×54
解:原式=4.6×0.28×10+0.28×54 =0.28×(46+54)=0.28×100 =28 请参考以上
简便
运算步骤。由此可见,题目并不算难,当然前提是你能够熟练地运用乘法的分配律和结合律。
4.6×2.8+0.28×54怎么样简便?
答:
解:
4.6
*
2.8+0.28
*
5.4
=46*0.28+0.28*5.4 =0.28*(46+
54
)=0.28*100 =28
4.6
x
2.8+0.28
x
54怎么
做?
答:
4.6x
2.8+0.28
x
54
=4.6x2.8+0.28x10x5.4 =4.6x2.8+2.8x5.4 =2.8x(
4.6+5.4
)=2.8x10 =28
4.6
*28
+0.28
*
54
的
简便
方法?
答:
4.6*28
+0.28
*
54
=4.6*28+28*0.54 =(4.6+0.54)*28 =5.14*28 =5.14*(30-2)=154.2-10.28 =143.92 如果是4.6*28+
2.8
*54更
简便
4.6*28+2.8*54 =4.6*28+28*5.4 =(
4.6+5.4
)*28 =10*28 =280
4.6×
28
+0.28×5.4
的
简便
计算?
答:
4.6×
28
+0.28×5.4
=4.6*28+28*0.054 =28*(4.6+0.054)=28*4.654 =130.312
0.46
×2.8+5.4×0.28简便
计算
答:
2.8 解析:0.46
×2.8+5.4×0.28
=0.46×2.8+0.
54
×2.8 =(0.46+0.54)×2.8 =1.00×2.8 =2.8
4.37
×2.8+0.28×
57.3-0.28用
简便
方法计算
答:
4.37
×2.8+0.28×
57.3-0.28 =43.7
×0.28
+0.28×57.3-0.28 =0.28×(43.7+57.3-1)=0.28×100 =28
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