问题
解答题
|
答案
(1)24×
+51×51 43
,62 43
=24×
+62×51 43
,51 43
=(24+62)×
,51 43
=86×
,51 43
=102;
(2)0.25×(1.6+1.6+1.6+1.6),
=0.25×4×1.6,
=1×1.6,
=1.6;
(3)
÷7 9
+11 5
×2 9
,5 11
=
×7 9
+5 11
×2 9
,5 11
=(
+7 9
)×2 9
,5 11
=1×
,5 11
=
;5 11
(4)0.125×32×2.5,
=0.125×8×4×2.5,
=(0.125×8)×(4×2.5),
=1×10,
=10.