140×4= 800×5= 2400÷6= 300÷5= 786×0=
44×4= 60×2= 14×7= 800÷2= 90÷3=
14×2= 600﹣150= 120÷3= 84÷7= 88÷1=
500﹣70= 106×3= 125+75= 320÷8= 470+130=
140×4= 800×5= 2400÷6= 300÷5= 786×0=
44×4= 60×2= 14×7= 800÷2= 90÷3=
14×2= 600﹣150= 120÷3= 84÷7= 88÷1=
500﹣70= 106×3= 125+75= 320÷8= 470+130=
=
=
=
=
=
=
=
=
=
= 1﹣
=
+0.625=
=
= 3﹣
=
+0.75=
+
﹣
= 1.8÷2.7=
﹣
=
+
= 4+
= 3﹣
=
﹣
=
﹣
=
﹣
﹣
=
+
+
=
+
= 
﹣
= ．
=
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