75×4+4×25=（75+25）×4應(yīng)用的是


  1. A.
    加法分配律
  2. B.
    乘法分配律
  3. C.
    乘法交換律
B
分析：75×4+4×25=（75+25）×4就是兩個(gè)數(shù)與同一個(gè)數(shù)相乘，等于這兩個(gè)數(shù)相加后再與第三個(gè)數(shù)相乘，是乘法分配律的反用．
解答：75×4+4×25=（75+25）×4是乘法分配律的反用．
故選：B．
點(diǎn)評(píng)：乘法分配律用字母表示就是：（a+b）×c=a×c+b×c，反過來也成立．
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180÷60= 12×25= 0÷90=
4×5÷4×5= 0.25×4+4= 131+218+269+182=
25×6×4= 420÷35= 36×5×4=
120÷5÷3= 198-75-25= 120-20÷5=
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0.45÷1.25÷8= 2.5×7.6×4= 97.6÷0.02=
8.8-（0.25+0.4）= 0.25+87+0.75= 0.8-0.35×2=
0.1÷0.01×0.1= 9.9+9.9×99= 2.7×3.6+6.4×2.7=
720÷8÷9= 2.9+5.7+2.1= 2-0.16-0.64=
16.7+84.5-16.7= 6.8-（3.8+2.9）= 9×1.3+9×6.7=
5.5-5.25+5.2= 0.8×25-10= 42.8×25×4=
7.2+2.8= 0.9÷0.01= 3.5+7.6=
3×0.2×0.5= 0.96÷0.3= 1.5×0.4=
7÷0.25= 2.5×0.7×0.8= 8-2.5=
16÷1.6= 5.6×1.01= 8×（2.5+0.25）=
0.36+0.64= 64.32÷16= 72.8÷0.8=
8.4×0.2+1.6×0.2= 8.4÷4.2= 0.05×0.8=
2.56-0.37= 1.23×3= 25×0.8×0.5=
12×2.5= 3.2÷1.6= 3.5+3.5×3=
19.6÷2= 8.8÷2.2= 3.9+2.03=
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0.75×4= （1.5+0.25）×4= 4.2÷0.1=
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24÷4+56÷4= 2.1×0.3÷2.1= 2.3-0÷8.1=
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3.3×2=2.4×0.5=0.6×0.9=0.2×0.3=
0.39+0.61=10-7.2=0.88+1.1=0.75×4=
11-1.5=4.48-4=7.8-0.8=2.8×5=
4×0.3=4×0.25=3.2+1.6=10.6-5.2=
0.32+1.68=8×125=7.28+7=0.8+39.2=
43+0.01=0.4×2=1.5×6=1×0.04=
1.53-0.5=1.5-0.6=0.3+1.5=95÷5=
0.65+4.35=14-7.4=11.2-9.8=4.4×2=
35-25=56-26=45+15=35-15=
38+28=15+25=12+12=47-27=
13+23=1-12=14+14=212+312=
14-0=610-510=1-23=0+56=
78-38=29+29=58-48=15+45=
0.9×125×8=5.75+1.37+4.25=0.43×10+5.7=62-2.8-1.2=
2.7×4+2.7×6=0.25×0.5×4=

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科目：小學(xué)數(shù)學(xué) 來源： 題型：解答題

180÷60=12×25=0÷90=
4×5÷4×5=0.25×4+4=131+218+269+182=
25×6×4=420÷35=36×5×4=
120÷5÷3=198-75-25=120-20÷5=
59億-58億=（1.3+3.5）÷0.6=75÷2.5=
0.45÷1.25÷8=2.5×7.6×4=97.6÷0.02=
8.8-（0.25+0.4）=0.25+87+0.75=0.8-0.35×2=
0.1÷0.01×0.1=9.9+9.9×99=2.7×3.6+6.4×2.7=
720÷8÷9=2.9+5.7+2.1=2-0.16-0.64=
16.7+84.5-16.7=6.8-（3.8+2.9）=9×1.3+9×6.7=
5.5-5.25+5.2=0.8×25-10=42.8×25×4=
7.2+2.8=0.9÷0.01=3.5+7.6=
3×0.2×0.5=0.96÷0.3=1.5×0.4=
7÷0.25=2.5×0.7×0.8=8-2.5=
16÷1.6=5.6×1.01=8×（2.5+0.25）=
0.36+0.64=64.32÷16=72.8÷0.8=
8.4×0.2+1.6×0.2=8.4÷4.2=0.05×0.8=
2.56-0.37=1.23×3=25×0.8×0.5=
12×2.5=3.2÷1.6=3.5+3.5×3=
19.6÷2=8.8÷2.2=3.9+2.03=
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0.75×4=（1.5+0.25）×4=4.2÷0.1=
4.2÷3.5=2.14-0.9=27+456+73=
12÷0.3=2.87÷0.7=13÷4=
24÷4+56÷4=2.1×0.3÷2.1=2.3-0÷8.1=
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