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．相关试题
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=口算．
46+34= 72﹣28= 800×5= 5000+200=
32×2= 96÷3= 80÷4= 7700﹣700=
64÷2= 27+45= 85﹣78= 1400﹣600=
+
=
﹣
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+
=
﹣
=
口算．
46+34= 72﹣28= 800×5= 5000+200=
32×2= 96÷3= 80÷4= 7700﹣700=
64÷2= 27+45= 85﹣78= 1400﹣600=+=﹣=+=﹣=
﹣
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=
×
= 3÷
÷0.5=
=
=
+
=
﹣
=
﹣
= 1.3×7+6.7×7=
×5=
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