65+73+ 135 357+288+ 143 272+68+28
129+235+ 17 1+ 165 17+ 145+23+35 999+99+9+3
6+7+8+ 102+ 103+ 104 9998+3+99+998+3+9
The second category: subtraction
400-256-44 5 17-53-47 284- 159-4 1
258-42- 16 545- 167- 145 478-47- 178
344-( 144+37) 236-( 177+36)
The third category: multiplication
45×4×5 23 ×5×2 25×9×4
8×( 125× 13) (250× 125)×(4×8)
88× 125 72× 125 125×64×25
42× 125×8×5 25×4×88× 125
The fourth category: multiplication
( 12+50)×40 125×(40-4) 76× 103
18× 125 25×44 42×25
99×9 99×78
The fifth category: multiplication
45×37+37×55 28×2 1+28×79 17×23-23×7
38×46+64×38 99×32+32 46+46×59
167×2+ 167×3+ 167×5 39×8+6×39-39×4
28×225-2×225-6×225
(42+25)× 125+( 18+ 15)× 125
23×2×4+25×4×2+27× 1×8+25×8× 1
99×22+33×34
Category VI: Except
360÷4÷9 250÷5÷2 600÷ 12÷5
800÷5÷8 480÷5÷48 240÷5÷ 12
420÷35 2400÷25 7800÷ 125
The seventh category: addition and subtraction
92+99 197+ 102 354- 108
405-99 127-98
323+ 189- 123 248-86+48 672-36+64
(6467-832)+( 1832- 1467) 1530+(592-530)- 192
(2+4+6+……+98+ 100)-( 1+3+5+……+97+99)
The eighth category: multiplication and division
960×46÷48 99000÷ 12 1× 1 1 3702×38÷ 1234
640÷( 16÷4) 1000÷( 125÷4)
Category 9: Addition, Subtraction, Multiplication and Division
(98+ 147)÷49 (230-23)÷23 (250-25)÷25
1736÷28+ 1064÷28 125×(860+240÷ 12)
700+6 12÷ 12×4 (37+ 15)×85+ 1360
2005×20062006-2006×20052005