[2.1+7÷(2數(shù)學(xué)公式-0.625)]×1數(shù)學(xué)公式

解:[2.1+7÷(2-0.625)]×1,
=[2.1+7÷]×1,
=[2.1+]×1
=×1
=
分析:先算小括號里面的減法,再算中括號里面的除法,再算中括號里面的加法,最后算括號外的乘法.
點評:一個算式里,如果有括號,要先算小括號里的,再算中括號里面的,最后算括號外的.
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0.36÷1.2= 0.78-0.3= 3.7×2= 0.4×0.5=
0.39+0.61= 10-7.2= 0.88÷1.1= 0.75×4=
11-1.5= 2.48÷4= 7.8-0.38= 2.8×5=
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0.32+1.68= 0.8×125= 7.28÷7= 4.8+39=
43÷0.01= 0.4÷2= 1.3×60= 1.5×0.04=
1.53-0.7= 1.5-0.6= 0.3÷1.5= 95÷19=
0.65+4.35= 14-7.4= 11.2-9.8=
4
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)=
0.9×1.25×8= 5.85+1.37+4.25=
0.43×10+57= 62-2.8-1.2= 2.7×3÷2.7×3= 0.8×0.5×1.25=

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科目:小學(xué)數(shù)學(xué) 來源: 題型:

3.2×0.2= 1.4×0.4= 3.3÷3= 1.2÷0.3= 0.56÷8=
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1.23+3= 5.6+1.23= 4.5×2= 5.6÷1.4= 6.6÷1.1=
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1.25×8= 3÷5= 2.3+2.3= 6.23+3.6= 9.3÷3=
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1.
(1)438+203 (2)256+199 (3)416-302 (4)325-198
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9
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4
5
+
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(13)4.3-2.45+5.7-6.55 (14)125×48 (15)25×32 (16)35×1.4
(17)1.25×88 (18)0.25×444 (19)32×0.25×12.5 (20)25×80×0.04×125
(21)1.9×4×0.5 (22)25×1.25×4×0.8 (23)(1.6+1.6+1.6+1.6)×2.5 (24)(0.7+0.7…+0.7)×12.5(80個0.7相加)
(24)9.9×8.6+8.6 (25)99×5.4
(26)4.8×1.01 (27)95×101-95 (28)95×102-190 (29)95.6×18+0.4×18
(30)(
1
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7
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(122)3÷2.5 (123)84+(54-16) (124)
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科目:小學(xué)數(shù)學(xué) 來源: 題型:閱讀理解

4.7+2.3= 4.5×2= 6.9-2.5= 7.2×0.8=
6×3.4= 0.62-0.32= 1.4×0.5= 0.75×100=
0.02×0.5= 3.6÷0.3= 6.3÷7= 5.6÷100=
0.75÷0.25= 0.125×8= 4.8÷0.3= 0.96÷2=
0.56÷28= 0.36÷0.4= 0.64÷0.8= 0.72÷3.6=
3.6÷24= 0.8×1.1= 7.2+12.8= 46.7-3.8=
12.8÷4= 5.2÷13= 12.5÷5= 1.64÷41=
10÷20= 24÷15= 8.65×10= 0.35×0.6=
3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5=
2.4÷0.8= 10.8÷9= 9.6÷0.8= 0.108÷2=
4.95÷0.9= 9.65÷0.1= 0.325×100= 2.5×8=
0.56÷0.7= 0.125×4= 3.28×0.1= 3.9÷0.13=
7.2×0.1= 0.01×0.1= 0.25×0.4= 1.6÷0.8=
1÷2.5= 1.25×0.8= 3.2÷0.04= 0÷1.7=
0.22×102= 9.6÷0.8= 5×0.24= 4.5-0.05=
3.9÷0.13 16.5÷0.5= 5×0.12= 24×0.5=
4.8×0.5= 2.8+4.2= 0.84÷2.1= 5÷0.25=
7.8÷0.01= 5.4÷0.6= 3.2÷5= 7×0.62=
0.56÷0.8= 7.4-2.8= 0.18÷0.2= 0.16÷8=
4.5×0.02= 8+7.2= 1.2×30= 0.012×0.2=
7.3×0.3= 9÷6= 3.6÷0.12= 7.8÷0.6=
2÷5= 4.5+5= 0.3÷0.6= 0.96÷0.2=
10.5×0.4= 7.3+0.27= 8×0.125= 0.54÷0.6=
0.61+0.39= 0.56÷28= 10÷20= 4.08÷0.4=
11-9.4= 0.8×0.11= 0.72+12.8= 5.6÷0.01=
2.3×100= 0.75×100= 0.108÷2= 10.8÷9=
0.7÷0.8= 16-5.07= 4.2×0.4= 0.72×6=
12÷0.5= 5.2×0.4= 12.2÷0.2= 5.6÷100=
0.41+3.7= 0.02×0.5= 7.2-0.8= 1.4×0.5=
84÷0.21= 0.75÷0.25= 2.5×16= 0.108÷2=
1.75+32.5= 16-5.07= 5.2÷13= 1.64÷41=
1.02×0.2= 0.26×0.3= 8.4×0.02= 1.29×6=
0.8×0.05= 12.6÷0.03= 8.71÷0.1= 21÷0.21=
0.8×0.13= 0.34÷17= 8.08÷0.4= 0.5×2.2=
1.24÷4= 3.27+0.63= 5.02×0.3= 0.3×0.5=
6.4÷4= 7.2÷1.8= 0.7÷0.35= 0.72÷1.44=
0.48÷0.04= 1.25÷2.5= 5.5+55= 16.8÷8=
0.54+2.2= 3.5-0.05= 2÷0.02= 0.25×40=
1.5×0.6= 0.32÷0.8= 12.25÷0.5= 73.5×0.1=
46.5+52.5= 0.45×102= 1.25×88= 2.64+3.85+1.54=
8×1.25= 5.6÷3.5= 4.2÷0.7÷6= 0.4×8.6×25=
0.27÷0.3= 2.5×101= 0.65×101-0.65= 2.6×7÷2.6×7=

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