1−320−815 = - 二一组卷

题型：填空题题类：常考题难易度：容易

异分母分数加、减法(不含带分数) 6936

$\text{[math]}$ =

举一反三

$\text{[math]}$

计算： $\text{[math]}$

$\text{[math]}$

$\text{[math]}$ {#blank#}1{#/blank#}	$\text{[math]}$ {#blank#}2{#/blank#}
$\text{[math]}$ {#blank#}3{#/blank#}	$\text{[math]}$ {#blank#}4{#/blank#}

25×8= 12.56÷6.28= 3.14×5 = 3.14×40=

3.14×100% = 75÷10%= 75×10%= 2.5×0.4=

12.56÷3.14= $\text{[math]}$ ×5= $\text{[math]}$ - $\text{[math]}$ = 3- $\text{[math]}$ =

20×6= 35×20= 23×30= 20×18= 15×10=

51×12= 5-2.3= 6.1-5.8= 13.5+10= 8.3+6.7=

14.8+1.5= 5.3-1.9= $\text{[math]}$ - $\text{[math]}$ = $\text{[math]}$ + $\text{[math]}$ =

1- $\text{[math]}$ = $\text{[math]}$ + $\text{[math]}$ = $\text{[math]}$ + $\text{[math]}$ = 1- $\text{[math]}$ =

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