1.1×6.5+5.3×1.1﹣11.8．
直接写得数×0.25=÷= 2×÷= 6.3×=÷= 2﹣﹣= 2.6×11﹣2.6= 1.8×4×0.5=
口算我最棒!=========
口算×=×= 12×=+3=÷=÷4=×= 5÷=
直接写得数======
带分数除法． （1）例：4÷1=÷= = 分数除法中有带分数的，先把带分数化成 ，然后 ． （2）试一试． 16÷1÷1 4÷5÷1 2÷1 6÷ 1×3 2﹣．
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×0.25=
÷
= 2×
÷
=
÷
= 2﹣
﹣
= 2.6×11﹣2.6= 1.8×4×0.5=
=
=
=
=
=
=
=
=
=
×
×
= 12×
=
+3=
÷
=
÷4=
×
= 5÷
=
=
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=
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=
÷1
=
÷
= = 
÷1
4
÷5
÷1
÷1
6
÷
×3
2
﹣
．