笔算并验算． 659+376= 700﹣637= 604﹣97=
直接写出得数8×= 7÷= += ×=100×= 95×101= ﹣1.25=1 1× =10.125×（×8）= （4×）÷（4×）=
脱口而出205+76= 6.75+2= 1000÷999= 0.125×8== = = （）×8=
直接写出得数+= ÷= 12×= ×=21÷﹣84= ﹣×= 10﹣= ×÷×=+÷2= +×=
直接写得数．×0×17= ÷4÷= ÷= 57×= ﹣+=××= 1÷= （6+）×= ﹣= +=
4÷= ×6÷= 6×+6×= ×=（+）×16= 1÷= ×= 24%×5=
= 7÷
= 
+
×
=
= 95×101= ﹣1.25=1
1
× =1
×8）= （4
×
）÷（4
= 
= 
= （
）×8=
+
= 
÷
= 12×
= 
×
=
﹣84= 
﹣
×
= 10﹣
= 
×
÷
×
+
÷2= 
+
×
=
×0×17= 
÷4÷
÷
= 57×
= 
﹣
+
=
×
×
= 1÷
= （6+
）×
= 
﹣
= 
+
=
= 
×6÷
+6×
= 
×
=
+
）×16= 1÷
= 
×
= 24%×5=
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