问题
解答题
0.25×1.25×4×8 2.125×
|
答案
(1)0.25×1.25×4×8
=(0.25×4)×(1.25×8)
=1×10
=10;
(2)2.125×
+1.875÷41 4
=2.125×
+1.875×1 4 1 4
=(2.125+1.875)×1 4
=4×1 4
=1.
0.25×1.25×4×8 2.125×
|
(1)0.25×1.25×4×8
=(0.25×4)×(1.25×8)
=1×10
=10;
(2)2.125×
+1.875÷41 4
=2.125×
+1.875×1 4 1 4
=(2.125+1.875)×1 4
=4×1 4
=1.