一个数除以5与除以3的商相差4,余数都是1,求这个数.
计算并验算.
135×14 872÷18 7.05×1.8
+
.
6+17= 156﹣156= 4500÷9= 41+18= 3600÷30=
57+43= 48÷12= 1.8+3.5= 7﹣3.8= 35×60=
35×10= 1500÷10= 0÷46.79= 1.5÷5= 8÷5=
+
=
+
= 1﹣
=

﹣
=
3﹣
=
×2=
×
=
÷
= 40×80=
80﹣17 32×20 75﹣69= 13×5= 8.7﹣2.4=
2000+400= 1.4×100= 1.2÷100= 124.6×1= 7.256÷7.256=
1.2÷0.2= 24×10%=
+0.5= 2+
=
+
=
÷2=
÷
=
×0.2=
57+28= 0.12×1000= 240﹣170= 13×0.4= 69÷23=
0.8×0.5= 0.24÷2= 4.6+3.9= 303÷3= 23÷24=
0.049÷10= 105﹣99=
+
=
+
=
﹣
=
2﹣
= 0.2÷
= 41×82=
直接写出得数.
1.65﹣0.6= 7.1+0.9= 0÷125= 23=
= 1﹣
= 4×0.25= 53=
计算下面各题,能简算的要简算.
1+
﹣
2﹣
﹣
+
﹣
﹣(
﹣
)
+
+
+
﹣
.