用3个长为8厘米,宽为4厘米的长方形拼成一个大长方形(见图)这个大长方形的周长是多少厘米?
直接写出得数.
0.36+1.7=
×
= 0.32×0.05= 1.2÷
=
6.8﹣1.08= 50×30%=
﹣
﹣
= 0.18÷0.12=
直接写出得数.
0.77+0.33= 7÷1.4= 9+
= 5656÷56=
32÷53×0= 31÷1000=
÷7= 1﹣
+
=
直接写出得数
11﹣1.1= 1.26÷0.3= 12.5×
= 13÷39=
1.5×0.2= 87.5%×
= 2﹣
=
=
直接写结果.
14.6﹣6=
+
= 0.21+
+0.79=
×
= 5.47﹣1.8﹣3.2=
﹣0.25= 0.5÷
=(
+
)×63= 0.1:
= 1.25×
×8=
直接写出得数.
1.39+0.11= 0.08×0.5= 2.6﹣1.7= 85÷5=(
+
)×8=
4÷
=
÷
=
﹣0.9=
+50%= 6.5×0.2=