两堆煤，甲堆重量是乙堆的3倍，如果甲堆运来22吨，乙堆运2吨，那么甲堆重量是乙堆的5倍。两堆煤原来各有多少吨？
口算：
26.26÷26= 4.57+6.43= 7.9×11﹣7.9= 3.14×32=
3+
﹣3+= 0.1×30%= 2÷1%﹣2=÷
=
1.8×4×0.5= 1.5﹣1.5×0.3= 5.7+4.3= 1﹣25%=
18×
=
×
= 3.6÷12= 18÷
=
÷22=
÷5=
÷1= 1﹣0.6=
0.92﹣0.2= 0.52+0.4= 0.72÷0.9= 0÷0.24=
3.3÷0.1= 1÷0.25= 0.6×5= 0.2×0.4=
0.25×36=
×3=
×12= 4÷
=
÷
=
÷
= 10÷
= 3.5+47=
0.4×12×25= 10×= 260﹣48﹣52= 3.6÷12=
18÷
= 5.7+4.3= 0.25×36=
×3=
0.4×12×25=
直接写出得数
13.6+0.64= 0.6×1.5=
+
=
÷2÷
=
15×（1﹣
）= 1÷（
﹣
）= 1﹣3÷7=
÷
××=
﹣（
+
）=（9.9﹣
）÷0.9=
直接写出得数．
0.36+0.04= 1.8÷0.01=
÷
= 6.4×
=
×21×
=（56.9﹣32.7）×0=
+
= 44÷
=
直接写得数
6﹣3.75= 0.1×0.99= 7.5÷0.25= 1÷
=
×
=
+
= 2﹣
= 4.2×0.5= 6.4﹣3.25= 9.3÷0.03=
44÷
=
÷2÷= 9﹣
﹣
=
直接写出得数．
4.6+3.2= 2.5×40= 0.43×3= 0÷5.8=
+
=
﹣
=
+
=
×
=