Question

简便计算题

急着





Answer 1

(2又5/7+27)-(1.63+0.27)

＝3-2

＝1

Answer 2

(4又7/8+3/16)÷13/16
=39/8x16/13+3/16x16/13
=6+3/13
=6又3/13
1.75x6/25+0.76÷4/7
=7/4x0.24+0.76x7/4
=7/4x(0.24+0.76)
=7/4x1
=7/4
2又5/7-1.37-0.63+2/7
=(2又5/7+2/7)-(1.37+0.63)
=3-2
=1

Answer 3

(4又7/8+3/16)÷13/16
＝(39/8+3/16)÷13/16
＝(78/16+3/16)÷13/16
＝81/16÷13/16
＝81/16×16/13
＝81/13
1.75×6/25+0.76÷4/7
＝7/4×6/25+76/100÷4/7
＝6/25×7/4+76/100×7/4
＝(6/25+76/100)×7/4
＝(24/100+76/100)×7/4
＝100/100×7/4
＝7/4
2又5/7－1.37－0.63+2/7
＝19/7－(1.37+0.63)+2/7
＝19/7+2/7－(1.37+0.63)
＝21/7－2
＝3－2
＝1

Answer 4

25×42×4
68×125×8
4×39×25
4×25+16×25
4×25×16×25
36×99
(25+15)×4
(25×15)×4
49×49+49×51
49×99+49
(68+32)×5
5×289×2
68+32×5
(125×25)×4
(125+17)×8
25×64×125
85×82+82×15
25×97+25×3
64×15－14×15
125×88
88×102
87×99+87
79×25+25
76×101－76
378+527+73
167+289+33
58+39+42+61
36×45+36×56－36
66×93+93×33+93
99×32
46×25
36×45+36×56－36
66×93+93×33+93
97＋89＋11
88×102
125×88
26＋47＋174
85＋47＋15＋53
815＋49＋65＋14＋11
72×125
18＋77＋40＋23＋48
71＋73＋69＋74＋68＋70＋69
123×64＋123×36
39×4×5
125×6×8
25×24
32×305
103×15
78×24－24×68
49×49+49×(40+6)×25
(68+32)×5
68+32×5
49×99+49
36×97－58×36+61×36
3000÷25÷47
20÷15÷61
50÷25÷2
5000÷8÷125
99×23＋23
56×7＋45×7－71
25×13×8
72÷6×(51＋19)
3.4＋4.6－2.9
900－178－122
(79＋21)÷20
125×72×47
28×79＋2
72×79
8.59＋2.57＋3.43＋5.47
(20+4)×25
99×11
49.62＋27.17－19.62
1546一(546－239)
(20+4)×25
9×37+9×63
5×289×235×37+65×37
124×25-25×24
85×82+82×15
32×(200+3)38×29+38
(125×25)×4
75×299+75
(4+8)×125
25×(20+4)
45×7+55×7
8×27+8×73
103×32
329×101
9×37+9×63
99×23
36×97－58×36+61×36
(125+17)×8
102X100+102
8X12+8X7
5000÷8÷125
165+204+335+96
3000÷25÷4
56×7＋45×7－7
720÷15÷6
150÷25÷2