口算．
18÷3= 15×2= 60×43= 90÷5=
40×6= 784﹣360= 170×4= 138+947=
700×9= 76×10= 69÷3= 9×8÷4=
1600﹣96= 48×50= 100×10= 56÷7×48=
口算．
18÷3= 15×2= 60×43= 90÷5=
40×6= 784﹣360= 170×4= 138+947=
700×9= 76×10= 69÷3= 9×8÷4=
1600﹣96= 48×50= 100×10= 56÷7×48=
+
= 
﹣
= 
÷
=
+
= 
÷
= 1﹣
= 
×
=
= 
= 
= 
=
= 
= 
=
+
= 
﹣
= 
= 14÷
=
÷
= 
×
= 
÷
= 6×
=
= 9×
= 
÷2= 
÷
= 1
= 
×1.3= 
×
=
÷
= 
= 
=
= 
=
粤公网安备 44130202000953号