口算.
(1)7.2+2.08=
(2)
+
=
(3)
÷
=
(4)0÷0.99=
(5)32×0.125=
(6)0.75×3÷
=
(7)
+3.2÷16×4=
(8)
﹣
×
=
(9)0.8÷0.01=
(10)10×
﹣1÷3=
(11)8.4÷0.7=
(12)
×5÷
×5
(13)0.23=
直接写出得数.
﹣0.01= 1.53+47=
+
=
÷9=
×
=
+0.75=
÷
= 1﹣25%=
0.6÷
= 125×8=
×1.8= 0.8÷1.6=
(
﹣
)×12= 402﹣62﹣38= 752﹣598= 99+999+2=
直接写出得数.
①14÷21= ②5﹣1.47﹣2.53= ③
÷8=
④
﹣
= ⑤
÷
﹣
= ⑥
×0.2=
直接写出得数.
1.87+5.3= 2.5×2.4=
+
=
×
=
1
= 7.2×
= 8
﹣3
= 15.16+9
=
0.092= 24×4%= 3.1﹣0.16﹣0.94=
÷
= 3.4÷0.17=
×
÷
×
=