Question

2.1×0.3+2.1÷0.7,怎么简算?

Answer 1

2.1×0.3+2.1÷0.7,怎么简算?

2.1×0.3+2.1÷0.7
=0.63+3
=3.63

2.1×0.3+2.1÷0.7怎么简便

=2.1*十分之三+2.1*十分之七
=2.1*（十分之三+十分之七）
=2.1*1
=2.1

2.1/(0.7+0.3)求答案:可以简算吗？

没有简便方法，直接计算：
2.1/(0.7+0.3)
=2.1÷1
=2.1

0.777乘0.7+0.111乘2.1怎么简算

原式=0.111*7*0.7+0.111*2.1
=0.111*4.9+0.111*2.1
=0.111*（4.9+2.1）
=0.111*7
=0.777

(16.8 2.1)/0.7的简算

(16.8+2.1)/0.7的简算
=16.8÷7+2.1÷0.7
=2.4+3
=5.4

22.5×0.7-2.1+0.8简算

• 22.5×0.7-2.1+0.8

• =2.25x7-1.3

• =14+1.75-1.3

• =14.45

(7.28 2.1)/0.7的简算

（7.28+2.1）÷0.7
=7.28÷0.7+2.1÷0.7
=10.4+3
=13.4

1,484÷[2.1÷(0.7 0.8)]的简算

1,484÷[2.1÷(0.7 + 0.8)]
=1484÷1.4
=14840÷14
=1060

2.1÷0.7+2.1÷0.3脱式运算

=3+7
=10

1.8*2.1÷1.8*2.1怎么简算

1.8*2.1÷1.8*2.1
把1.8*2.1当成x
则x÷x=1