怎样简便怎样算2.65×101(2.4×58+3.6÷34)×12758×1110+38÷101199989+9989+989+13.-数学
题文
怎样简便怎样算 2.65×101 (2.4×
999
|
答案
(1)2.65×101, =2.65×100+2.65, =265+2.65, =267.65; (2)(2.4×
=(1.5+3.6×
=(1.5+4.8)×
=6.3×
=10.8; (3)
=(
=1×
=1
(4)999
|
题文
怎样简便怎样算 2.65×101 (2.4×
999
|
答案
(1)2.65×101, =2.65×100+2.65, =265+2.65, =267.65; (2)(2.4×
=(1.5+3.6×
=(1.5+4.8)×
=6.3×
=10.8; (3)
=(
=1×
=1
(4)999
|