学校食堂九月份用煤气640立方米,十月份计划用气是九月份的
,而十月份实际用气比原计划节约
,十月份节约用气多少立方米?
直接写得数.
3.14×25= 32÷40%= 789+198= 4521÷51≈(估算)
÷
= 3﹣
﹣
= 1÷0.01﹣10=
×9÷
=
直接写出得数.
11.7+3 0.5×90 12÷7
×4.8 12
÷
12.5×80
21
÷7 3
﹣1
+
﹣
+
3
×101﹣3
.
直接写出得数.
2.8+4.02= 2.5×41= 23.4÷10= 1.5+6﹣1.5
﹣
= 4.8÷12=
÷
= 3.9×5×
=
直接写出得数.
23.6﹣8.8=
+
=
×
= 0÷
= 0.24×5=
36÷
= 2.4÷40%=
×
= 2.75﹣(
+
)=
+
×
=
8.4÷0.7=
×33=
﹣
= 0.25×4= 3﹣
=
÷25%= 4.8×
= 3.37+6.63=
+
×2=
×
=
1﹣100%= 3.6×
= 0.5﹣
+0.5﹣
= 12.6÷3= 1.02﹣0.43=
1÷
= 10﹣1.34﹣3.66= 8÷
= 7+0÷7﹣7=
×13÷
=