计算.(能简算的要简算)
①0.25×6.82×4 ②1.344+0.162÷4
③12.68﹣4.8﹣3.68 ④3.6÷1.2﹣0.8×2.7
⑤9.2×1.05÷3.4 ⑥(2.6+3.2÷1.28)÷1.7(得数保留两位小数)
⑦6.83×(3.8﹣2.3)+1.5×3.7 ⑧4.5×[7.68÷(8.2﹣1.8)].
450﹣140= 25÷7= 900+238= 600﹣9×8=
90﹣7×5= 26+30﹣28= 48÷(2+4)= 780﹣772=
26+24= 80﹣30= 78﹣26==
= 0.25×2.69×4= 10﹣2.87﹣7.13=
÷24=
3÷= 0.87﹣0.49 4.9×0.7=
=
=
=
=
=
(25+4)×4= 12.37﹣3.25﹣6.75= 3/14×6= 0.51÷17=
14﹣7.4= 5.2÷1.3= 25×12==
= 2.5﹣2= 36﹣29= 120÷4=
300+25= 630﹣30= 4×50= 15.9+10.8=
26×13= 24÷4+56÷4= 8﹣2.5= 12×2.5=
2吨50千克= 吨.
直接写得数.
204+583= 11﹣= 3×
= 0.64÷0.08=
﹣
=
÷
= 2.6×0.25×4= 62=
0.56×=
÷50%= 11.75﹣1.05=
÷
=
直接写出得数:
(1)54+26= (2)3.6﹣2.8= (3)×
= (4)
÷
=
(5)12×= (6)
÷14=(7)
﹣
=(8)
+
= .
直接写出得数
98+67= 4.8﹣0.79=+0.2= 15﹣5
=
1.25×8= 1÷0.25=×1
= 7.2÷4=
2.5×1×0.4= 1﹣
﹣
=
÷
﹣1= 12×(
﹣
)=
直接写出得数.
81﹣46=
0.56÷0.7=
8﹣3.2=
15÷1%=×
=
+
=
0.42=÷2=