×
= 
÷
= 
×8= 
+
=相关试题
口算．
800﹣250= 30×40= 8100÷900= 10﹣0.98= 105÷7= 560+770=
0.25×0.4= 6.3÷0.07= 0.64÷8= 8.85×10= 4.73+0.7=
=
=
=
= 3.6×
= 8×1.36×1.25= 7.2×2.8+2.8×0.8=
口算．
800﹣250= 30×40= 8100÷900= 10﹣0.98= 105÷7= 560+770=
0.25×0.4= 6.3÷0.07= 0.64÷8= 8.85×10= 4.73+0.7===== 3.6×= 8×1.36×1.25= 7.2×2.8+2.8×0.8=
÷
=
﹣
=
×0.2=
÷
，乙数的
=③
+75%=
×
=⑤
÷8=⑥4
﹣
=
= ；
= ；
= 9
； 1.25×
= ；
； 4
÷2= 2
； 1
×1
；
= ．
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