7 1 1 8
(-)×60 (+ )×18 12 5 6 9 5 5 18 1 1 (- )× ( 10 + 5 )×5 6 9 5 8 4 2 7 ( 9 + 27 )×27 90×( 18 + 30 ) ( 3 2 5 + 25 )×25 ( 15 3 6 24 - 8 )× 15 (48+ 8 1
3 )× 24 (( 5 5 6 - 9 )×18 4 3 17 17 ×( 4 + 2 ) 22 3 27 × 5 3 4 + 27 × 4 7 5 12 ×6 + 12 ×6 4 7 × 6 13 + 3 6 7 × 13 2 3 ×7+ 2 3 ×5 63 100 ×101 5 27 ×28 34× 34 35 4 4 5 ×10 25 1 ×(12+2 6 3 ) 24×( 7 5 3 24 + 6 + 4 ) 7 1 20 - 5 )×20
( 1 3
5 + 7 )×35 48×( 11 1 5 24 + 6 + 12 ) 6 7 6 2
13 × 5 - 13 × 5 3 3 7 4 3 8 × 11 + 11 ×3 8 16 5 × 7 13 - 3 5 × 7 13 21× 3 7 + 4
7 ×21 6
77 ×78 37× 3
35 6 13 ×12
3 8
×8 4 1 3
3×25 ( 5 + 7 )×7×5 5
7 1 5 5 (-)×5×12 (-)×6×18 12 5 6 9 7 7 6 6 ×101- 12×+ 10 10 13 13 9 9 3 3
×19+ 23×+ 5 5
(712- 1 5 )×60 (=7 1 12×60- 5×60 =35-12 =23 ( 5 5 6 - 9 )× 18 5 5 6 × 18 5 18 5 - 9 × 5 3-2 1 ( 8 4 9 + 27 )×27 90 8 4 9 ×27+ 27 ×27 24+4 28 ( 3 2 5 + 25 )×25 4 4 详解答案
1 6 + 8
9 )×18 = 1 6 ×18+ 8
9 ×18 =3+16 =19
( 1 1 10 + 5 )×5 = 1 ×5+ 1 10 5 ×5 = 1
2 +1 =1 1
2
×( 2 7 18 + 30 ) =90× 2 90× 7 18 + 30 =10+21 =31
1 2 6 ×(12+3 )
====== 3 2 1 1 2= 5 ×25+ 25 ×25 = 6 ×12+ 6 ×3 1
=15+2 =2+ 9 1
=17 =2 9 15 3 6 7 5 3 ( 24 - 8 )× 15 24×( 24 + 6 + 4 ) = 15 6 3 6 24 × 15 - 8 × 15 = 1 3
4 - 20 = 1
10 (48+ 8 1
3 )× 24 (=48× 1 8 1
24 + 3 × 24 =2+ 1
9 =2 1
9 ( 5 5 6 - 9 )×18 = 5 5 6 ×18- 9 ×18 =15-10 =5 4 ×( 3 17 17 4 + 2 ) = 4 3 4 17 17 × 4 + 17 × 2 =24× 7 5 3 24 +24× 6 +24× 4 =7+20+18 =45
7 20 - 1 5 )×20
= 7 20 ×20- 1 5 ×20
=7-4 =3
( 1 3
5 + 7 )×35 = 1 35+ 3
5 × 7 ×35 =7+15 =22
48×( 11 1 5 24 + 6 + 12 ) =48× 11 48× 1 5 24 + 6 +48× 12
3
= 17 +2 =22+8+20 3
=2 17 =50
22 3 5 3 6 7 6 2
×+× 27 4 27 4 13 × 5 - 13 × 5 22 5 3 6 7 2 =( 27 + 27 )× 4 = 13 ×( 5 - 5 ) =1× 3 4 = 3 4 7 + 5 12 ×6 12 ×6 =( 7 5
12 + 12 )×6 =1×6 =6 4 6 3 6 7 × 13 + 7 × 13 =( 4 3 6 7 + 7 )× 13 =1× 6 13 = 6 13 2 3 ×7+ 2 3 ×5 =( 2 3 + 2 3 )×5 =1×5 = 6
13 ×1 = 6 13
3 3 7 + 4 3 8 × 11 11 ×3 8 =3 3 8 ×( 7 4 11 + 11 )
=3 3
8 ×1
=3 3
8
16 5 × 7 3 7 13 - 5 × 13 =( 16 5 - 3 5 )× 7 13 = 13 5 × 7 13
= 7 5
21× 3 7 + 4
7 ×21 21×( 3 7 + 4 7 ) =21×1
= =5 =21 63 6
×101 ×78 100 77 63 6 =×(100+1) =×(77+1) 100 77 63 63 6 6 =×100+ =×77+×1 100 100 =63+ 63 100 =63 63 100 5 27 ×28 = 5 27 ×(27+1) = 5 27 ×27+ 5 27 ×1 =5+ 5 27 =5 5 27 34× 34 35 =(35-1)× 34 35 =35× 34 34 35 -1× 35 =34- 34 35 =33 1 35 4 4 5 ×10 25 77 77 =6+ 6 77
=6 6 77
37× 3 35 =(35+2)× 3 35 =35× 3 3 35 +2× 35 =3+ 6 35
=3 6 35 6 13 ×12
= 6 13 ×(13-1)
= 6 6
13 ×13- 13 ×1
=6- 6 13 =5 7 13 3 8
×8 4 3
=(4+)×10 =(25+)×8
5 8 4 3
=4×10+×10 =(25×8+)×8
5 8 =40+8 =200+3 =48 =203
4 1 3
3×25 (+)×7×5 5
=(3+ 4 5 )×25 =3×25+ 4
5 ×25 =75+20 =95
( 7 12 - 1 5 )×5×12 (= 7 5×12- 1 12 × 5 ×5×12 =35-12 =23 7 10 ×101- 7 10 12= 7 10 ×(101-1) = 7 10 ×100 =70 9 5 ×19+ 9 5 23= 9 5
×(19+1) 5 7 = 1 5+ 3
5 ×7× 7 ×7×5
=7+15
=22 5 6 - 5 9 )×6×18 = 5 5
6 ×6×18- 9 ×6×18 =90-60 =30
× 6 6
13 + 13 =(12+1)× 6 13 =13× 6 13 =6
× 3 3
4 + 4 =(23+1)× 3 4 9 3 =×20 =24× 4 5 =36 =18
因篇幅问题不能全部显示,请点此查看更多更全内容