计算.(能简算的要简算)3.68×[1÷(2.1-2.09)]523÷145+49×523+5234-[3.75×(1.2-13)+34]49÷(79+49)×234.-数学
题文
计算.(能简算的要简算) 3.68×[1÷(2.1-2.09)] 5
4-[3.75×(1.2-
|
答案
(1)3.68×[1÷(2.1-2.09)] =3.68×[1÷0.01], =3.68×100, =368; (2)5
=5
=(
=2×5
=11
(3)4-[3.75×(1.2-
=4-[ |
题文
计算.(能简算的要简算) 3.68×[1÷(2.1-2.09)] 5
4-[3.75×(1.2-
|
答案
(1)3.68×[1÷(2.1-2.09)] =3.68×[1÷0.01], =3.68×100, =368; (2)5
=5
=(
=2×5
=11
(3)4-[3.75×(1.2-
=4-[ |