笔算：①2.608+2.84 ②6.07﹣3.869= ③1.5﹣0.306=④76.8+26.82= ⑤102.07﹣37.257= ⑥48.64+18.6=
口算×15= ×2= ×= ×=÷= ÷3= ÷5= ÷=
画一画．（1）=（2）÷4=
直接写结果：×3= 1÷= 1﹣﹣= ×= 3﹣4×=×12= ÷= += 1﹣﹣= ﹣=
直接写出得数×3= ×= ﹣0.25= 72×=÷= ÷= 36÷= ÷=
直接写得数．×16= 12÷= 0.3×=÷= 1÷= 0×== =
×15= 
×2= 
×
= 
×
=
÷
= 
÷3= 
÷5= 
÷
=
=
÷4=
×3= 1÷
= 1﹣
﹣
×
= 3﹣4×
=
×12= 
÷
= 
+
= 1﹣
﹣
= 
﹣
=
×3= 
×
= 
﹣0.25= 72×
=
÷
= 
÷
= 36÷
= 
÷
=
×16= 12÷
= 0.3×
=
÷
= 1÷
= 0×
=
= 
=
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