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(1)240×50%=(2)6.25:524=(3)5−4÷45=(4)21×13−0.375÷18=(5)0.75÷0.15−0.375×45=(6)10×356÷356×10=(7)1.25×99.99×0.4×8×2.5=(8)213×12.5×67×8=

题目详情
(1)240×50%=
(2)6.25:
5
24
=
(3)5−4÷
4
5
=
(4)21×
1
3
−0.375÷
1
8
=
(5)0.75÷0.15−0.375×
4
5
=
(6)10×3
5
6
÷3
5
6
×10=
(7)1.25×99.99×0.4×8×2.5=
(8)2
1
3
×12.5×
6
7
×8=

6.25:
5
24
=
(3)5−4÷
4
5
=
(4)21×
1
3
−0.375÷
1
8
=
(5)0.75÷0.15−0.375×
4
5
=
(6)10×3
5
6
÷3
5
6
×10=
(7)1.25×99.99×0.4×8×2.5=
(8)2
1
3
×12.5×
6
7
×8=
5
24
552424
5−4÷
4
5
=
(4)21×
1
3
−0.375÷
1
8
=
(5)0.75÷0.15−0.375×
4
5
=
(6)10×3
5
6
÷3
5
6
×10=
(7)1.25×99.99×0.4×8×2.5=
(8)2
1
3
×12.5×
6
7
×8=
4
5
4455
21×
1
3
−0.375÷
1
8
=
(5)0.75÷0.15−0.375×
4
5
=
(6)10×3
5
6
÷3
5
6
×10=
(7)1.25×99.99×0.4×8×2.5=
(8)2
1
3
×12.5×
6
7
×8=
1
3
1133
1
8
1188
0.75÷0.15−0.375×
4
5
=
(6)10×3
5
6
÷3
5
6
×10=
(7)1.25×99.99×0.4×8×2.5=
(8)2
1
3
×12.5×
6
7
×8=
4
5
4455
10×3
5
6
÷3
5
6
×10=
(7)1.25×99.99×0.4×8×2.5=
(8)2
1
3
×12.5×
6
7
×8=
5
6
5566
5
6
5566

2
1
3
×12.5×
6
7
×8=
1
3
1133
6
7
6677
▼优质解答
答案和解析
(1)240×50%=120;
(2)6.25:
5
24
=30;
(3)5−4÷
4
5

=5-5,
=0;

(4)21×
1
3
−0.375÷
1
8

=7-3,
=4;

(5)0.75÷0.15−0.375×
4
5

=5-0.3,
=4.7;

(6)10×3
5
6
÷3
5
6
×10
=3
5
6
÷3
5
6
×10×10,
=1×10×10,
=100;

(7)1.25×99.99×0.4×8×2.5
=(1.25×8)×(0.4×2.5)×99.99,
=10×1×99.99,
=999.9;

(8)2
1
3
×12.5×
6
7
×8
=
7
3
×
6
7
×(12.5×8),
=1×100,
=100.
6.25:
5
24
555242424=30;
(3)5−4÷
4
5

=5-5,
=0;

(4)21×
1
3
−0.375÷
1
8

=7-3,
=4;

(5)0.75÷0.15−0.375×
4
5

=5-0.3,
=4.7;

(6)10×3
5
6
÷3
5
6
×10
=3
5
6
÷3
5
6
×10×10,
=1×10×10,
=100;

(7)1.25×99.99×0.4×8×2.5
=(1.25×8)×(0.4×2.5)×99.99,
=10×1×99.99,
=999.9;

(8)2
1
3
×12.5×
6
7
×8
=
7
3
×
6
7
×(12.5×8),
=1×100,
=100.
5−4÷
4
5
444555
=5-5,
=0;

(4)21×
1
3
−0.375÷
1
8

=7-3,
=4;

(5)0.75÷0.15−0.375×
4
5

=5-0.3,
=4.7;

(6)10×3
5
6
÷3
5
6
×10
=3
5
6
÷3
5
6
×10×10,
=1×10×10,
=100;

(7)1.25×99.99×0.4×8×2.5
=(1.25×8)×(0.4×2.5)×99.99,
=10×1×99.99,
=999.9;

(8)2
1
3
×12.5×
6
7
×8
=
7
3
×
6
7
×(12.5×8),
=1×100,
=100.
21×
1
3
111333−0.375÷
1
8
111888
=7-3,
=4;

(5)0.75÷0.15−0.375×
4
5

=5-0.3,
=4.7;

(6)10×3
5
6
÷3
5
6
×10
=3
5
6
÷3
5
6
×10×10,
=1×10×10,
=100;

(7)1.25×99.99×0.4×8×2.5
=(1.25×8)×(0.4×2.5)×99.99,
=10×1×99.99,
=999.9;

(8)2
1
3
×12.5×
6
7
×8
=
7
3
×
6
7
×(12.5×8),
=1×100,
=100.
0.75÷0.15−0.375×
4
5
444555
=5-0.3,
=4.7;

(6)10×3
5
6
÷3
5
6
×10
=3
5
6
÷3
5
6
×10×10,
=1×10×10,
=100;

(7)1.25×99.99×0.4×8×2.5
=(1.25×8)×(0.4×2.5)×99.99,
=10×1×99.99,
=999.9;

(8)2
1
3
×12.5×
6
7
×8
=
7
3
×
6
7
×(12.5×8),
=1×100,
=100.
10×3
5
6
555666÷3
5
6
555666×10
=3
5
6
÷3
5
6
×10×10,
=1×10×10,
=100;

(7)1.25×99.99×0.4×8×2.5
=(1.25×8)×(0.4×2.5)×99.99,
=10×1×99.99,
=999.9;

(8)2
1
3
×12.5×
6
7
×8
=
7
3
×
6
7
×(12.5×8),
=1×100,
=100.
5
6
555666÷3
5
6
×10×10,
=1×10×10,
=100;

(7)1.25×99.99×0.4×8×2.5
=(1.25×8)×(0.4×2.5)×99.99,
=10×1×99.99,
=999.9;

(8)2
1
3
×12.5×
6
7
×8
=
7
3
×
6
7
×(12.5×8),
=1×100,
=100.
5
6
555666×10×10,
=1×10×10,
=100;

(7)1.25×99.99×0.4×8×2.5
=(1.25×8)×(0.4×2.5)×99.99,
=10×1×99.99,
=999.9;

(8)2
1
3
×12.5×
6
7
×8
=
7
3
×
6
7
×(12.5×8),
=1×100,
=100.
2
1
3
111333×12.5×
6
7
666777×8
=
7
3
×
6
7
×(12.5×8),
=1×100,
=100.
7
3
777333×
6
7
×(12.5×8),
=1×100,
=100.
6
7
666777×(12.5×8),
=1×100,
=100.