一块正方形草地,边长是12.5米,小明沿着草地四周走了4圈,他一共走了多少米?
计算
(1)5.425+4.575=
(2)67﹣48=
(3)36÷2=
(4)7.2÷0.04=
(5)6÷
=
(6)42×
=
(7)
=
(8)
=
(9)
=
(10)
=
直接写出得数
1﹣2÷3= 18+125+82= 25×64﹣25×58= 2001﹣199=
5×1.7×0.2= 9.82﹣(2.5+1.82)= 1212÷3= 0.9+99×0.9=
(
+
+
)×12= 9.25×4=(64+1.6)÷0.8=
÷(1+20%)×15=
直接写出得数.
327+199= 10﹣0.98= 3×101= 1.616÷4=
1﹣
﹣
=
×0×
= 5﹣5×0.6= 0.19+1.87+0.81=
÷
×
= 7.8×4﹣4×7.8= 12×(
+
)= 44÷13×26÷22=
直接写出得数.
9.6×0.25×4= 0.64÷0.08= 1
×17﹣
×17=
1﹣
×
= 3.6×9+3.6= 1.03﹣0.43=
直接写出得数.
25×24= 4.2÷0.2= 12﹣2=
1.25×8= 1÷0.6= 4÷2=