两个金鱼缸里共有金黄25条，甲缸里新放入6条，乙缸里取出3条，这时乙缸还比甲缸多2条金鱼。求甲、乙两缸原来各有金鱼多少条？
计算下面各题．
（1）用竖式计算，并验算．
20.01﹣9.94=
45.3÷75=
（2）用你喜欢的方法计算．
①960+1040÷（704﹣688）
②6.25÷0.01﹣1.25×25×8
③15.73﹣2.17﹣1.83+4.27
④
×
÷
⑤3.5×
+5.5×80%+0.8
⑥
+1÷
．
脱口而出．
1﹣0.08= 0.29×50= 0.99×0.78×0= 8.2﹣2.75﹣1.25=
2.5×0.4÷2.5×0.4= 0.3+0.07= 0.1÷0.08= 0.32÷0.5=
10﹣2.65= 0.9×0.08= 528﹣349= 6+14.4=
24÷0.04= 12.34﹣2.3= 0÷3.8= 7÷1.4=
7.2÷8×4= 67.5+0.25= 1.9×4×0.5= 0.77+0.33=
400÷125÷8= 5﹣1.4﹣1.6= 2
﹣（
+
）= 
÷3×
=
187.7×11﹣187.7= 10
×2= 3.2×7÷3.2×7= 6
÷6=
80×0.125= （
﹣
）×12= 1﹣
÷62.5%=
口算：
36+48 920﹣460 570÷10 12.5÷0.5 4﹣2.4
0.125×8 3.6×25% 
×
3.5+4.7 0.23÷0.1
÷3 ÷
298+405≈ 802﹣396≈ 38×51≈
432÷48≈
180÷60= 12×25= 0÷90=
4×5÷4×5= 0.25×4+4= 131+218+269+182=
25×6×4= 420÷35= 36×5×4=
120÷5÷3= 198﹣75﹣25= 120﹣20÷5=
59亿﹣58亿= （1.3+3.5）÷0.6= 75÷2.5=
0.45÷1.25÷8= 2.5×7.6×4= 97.6÷0.02=
8.8﹣（0.25+0.4）= 0.25+87+0.75= 0.8﹣0.35×2=
0.1÷0.01×0.1= 9.9+9.9×99= 2.7×3.6+6.4×2.7=
720÷8÷9= 2.9+5.7+2.1= 2﹣0.16﹣0.64=
16.7+84.5﹣16.7= 6.8﹣（3.8+2.9）= 9×1.3+9×6.7=
5.5﹣5.25+5.2= 0.8×25﹣10= 42.8×25×4=
7.2+2.8= 0.9÷0.01= 3.5+7.6=
3×0.2×0.5= 0.96÷0.3= 1.5×0.4=
7÷0.25= 2.5×0.7×0.8= 8﹣2.5=
16÷1.6= 5.6×1.01= 8×（2.5+0.25）=
0.36+0.64= 64.32÷16= 72.8÷0.8=
8.4×0.2+1.6×0.2= 8.4÷4.2= 0.05×0.8=
2.56﹣0.37= 1.23×3= 25×0.8×0.5=
12×2.5= 3.2÷1.6= 3.5+3.5×3=
19.6÷2= 8.8÷2.2= 3.9+2.03=
7.2×0.3+2.8×0.3= 13.8+9.9= 2.4×2.5=
0.75×4= （1.5+0.25）×4= 4.2÷0.1=
4.2÷3.5= 2.14﹣0.9= 27+456+73=
12÷0.3= 2.87÷0.7= 13÷4=
24÷4+56÷4= 2.1×0.3÷2.1= 2.3﹣0÷8.1=
1.37﹣1.37÷1.37= 4.4÷（5×0.2）= 7×1.3=
0.96÷0.06= 0.36×0.3= 0.35÷0.7=
13.65÷13= 4×0.8×0.25×1.25= 13+0.7÷0.7=
7.05×23.7+7.05×76.3= 0.125×3.2×2.5= （12+23.1÷0.75）×0.4﹣5.12=
728+199= 637﹣201= 16×25=
1.6×[（12﹣7.2）÷（0.84÷2.1）]=
粤公网安备 44130202000953号