數(shù)學(xué)公式-數(shù)學(xué)公式÷數(shù)學(xué)公式=0÷數(shù)學(xué)公式=0

錯誤
分析:此題應(yīng)先算除法,再算減法.而原題先算了減法,再算除法,故本題錯誤.
解答:-÷,
=-×,
=-,
=
故答案為:×.
點評:四則混合運(yùn)算,應(yīng)按運(yùn)算順序和運(yùn)算法則進(jìn)行計算.先算乘除,再算加減.
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科目:小學(xué)數(shù)學(xué) 來源: 題型:

直接寫出計算結(jié)果.
1.7×0.5=
4÷0.8= 5.6-2.3= 0.125×4=
1.44÷1.2= 3.2÷1= 3.07×100= 1.8×5=
0.36÷3.6= 9.6÷1.2= 0÷0.9= 0.1×0.12=
1.5÷0.3×0.2= 12.5+12.5÷12.5= 0.6+0.6÷0.6-0.6= 4.2×0.7+4.2×0.3=
(8.5-1.5)÷0.1= 20-3.7-6.3=

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科目:小學(xué)數(shù)學(xué) 來源: 題型:

口算
9.5×100=
1.25×8 0.25×0.9×4= 1.87×0=
3.5-1.5= 1.2×0.4= 3.6×0.5= 0.6×5=
0.24+0.6= 0.64×0.03= 7.8+2.2-1.5= 8×0.05=
0.125×8= 1.3×4= 0.4×0.6= 3×0.08=
0.35×2= 2.9×0.3= 10-0.9= 5.67×0=
0.8×0.01= 2.5×0.2= 2.4×0.3= 1.6×0.25=
0.17×0.3= 15×0.01= 10×0.07= 0.7×0.05=
0.2×0.05= 7.8×0.01= 0.2×0.26= 0.04×4=
12.4+2.1= 0.08×0.5= 0.14×4= 9×2.5+9×1.5=
1.8×0.5= 2.3×5= 0.3×3.6= 8×0.9+8×2.1=
2.5×4= 0.8+2.7×2= 0.05×7= 4.8+2.1+7.9=
3.4-1.8= 2.5+0.2×2= 0.02×0.1= 5.4-2.8=
0.3×0.2= 3.5×2×0.1= 0.3×0.3= 0×10.3×2.2=
0.12×0.7= 0.2×0.5= 0.92×0.4= 6.7-1.43=
1.2×4= 1.3×2= 1.2×0.3= 4.6+5.08=

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科目:小學(xué)數(shù)學(xué) 來源: 題型:閱讀理解

1.
(1)438+203 (2)256+199 (3)416-302 (4)325-198
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科目:小學(xué)數(shù)學(xué) 來源:小學(xué)生同步輕松練習(xí) 五年級數(shù)學(xué)·第九冊 題型:071

活動樂園

在下面的等式中,添上運(yùn)算符號和括號,使等式成立.

0.1  0.2  0.3  0.4  0.50

0.1  0.2  0.3  0.4  0.51

0.1  0.2  0.3  0.4  0.51

0.1  0.2  0.3  0.4  0.52

0.1  0.2  0.3  0.4  0.53

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科目:小學(xué)數(shù)學(xué) 來源: 題型:解答題

9.5×100=1.25×80.25×0.9×4=1.87×0=
3.5-1.5=1.2×0.4=3.6×0.5=0.6×5=
0.24+0.6=0.64×0.03=7.8+2.2-1.5=8×0.05=
0.125×8=1.3×4=0.4×0.6=3×0.08=
0.35×2=2.9×0.3=10-0.9=5.67×0=
0.8×0.01=2.5×0.2=2.4×0.3=1.6×0.25=
0.17×0.3=15×0.01=10×0.07=0.7×0.05=
0.2×0.05=7.8×0.01=0.2×0.26=0.04×4=
12.4+2.1=0.08×0.5=0.14×4=9×2.5+9×1.5=
1.8×0.5=2.3×5=0.3×3.6=8×0.9+8×2.1=
2.5×4=0.8+2.7×2=0.05×7=4.8+2.1+7.9=
3.4-1.8=2.5+0.2×2=0.02×0.1=5.4-2.8=
0.3×0.2=3.5×2×0.1=0.3×0.3=0×10.3×2.2=
0.12×0.7=0.2×0.5=0.92×0.4=6.7-1.43=
1.2×4=1.3×2=1.2×0.3=4.6+5.08=

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