文档介绍：(1)611-31= (2)890-870= (3)516-191=
(4)808-38= (5)967-702= (6)316-210=
(7)483-465= (8)840-479= (9)914-775=
(10)933-137= (11)912-894=
(12)838-688= (13)27 + 46 = (14)810 - 125 =
(15)92 + 65 = (16)90 + 47 = (17)18 + 15 =
(18)18 + 53 = (19)29 + 32 = (20)398 - 148 =
(21)256 + 775 = (22)449 - 312 = (23)202 – 155 =
(24)106 + 537 = (25)916 + 861 =
602÷7= 839÷9= 726÷6= 51×16 =
25+32×23 52+18×12 17+34×19
(26)713 - 288 =
(27)954 - 286 = (28)72 + 76 = (29)71 + 68 =
(30)64 - 60 = (31)716 - 117 = (32)766 + 792 =
(33)79-39 = (34)84-17= (35)175 + 157 =
(36)38 + 69 = (37)83 - 62 = (38)12 + 98 =
(39)808 + 213 = (40)704 - 124 = (41)607 + 914 =
(42)645 - 239= (43)648 - 585 = (44)352 + 708 =
(45)970 + 602 = (46)860 - 162 = (47)343 + 801 =
(48)806 + 487 = (49)691 + 400 = (50)56-14 =
78×22= 416÷4= 823÷8= 63×43=
37+16×28 65+11×12 56+37×21
(1)353 + 939 = (2)802 - 668 = (3)287 - 167 =
(4)859 - 371 = (5)941 - 343 = (6)472 + 425 =
(7)900 - 168 = (8)300+186 = (9)900 - 554 =
(10)800 - 200 = (11)460 + 991 = (12)700 - 666 =
(13)300 - 122 = (14)900 - 353 = (15)500 - 162 =
(16)900 - 705 = (17)400 - 133 = (18)200 - 158 =
(19)300 - 257 = (20)400 - 157 = (21)700 - 205 =
(22)785 + 937 = (23)274 - 226 = (24)455 + 695 =
(25)204 - 191 =
367÷4= 795÷5= 2×53= 79×97=
61+12×23 43+21×23 45+32×55
(26)224 + 944 = (27)704 + 736 =
(28)285 + 691 = (29)300 - 288 = (30)947 - 236 =
(31)1200-400= (32)120- 40= (33)166 - 120 =
(34)727 + 517 = (35)33× 2 = (36)332 - 246 =
(37)25+32 = (38)73 + 26= (39) 150 + 144 =
(40)2 ×14= (41)1400- 800= (42)320×3 =
(43)179 -79 = (44)792 + 192 = (45)544 - 492 =
(46)4× 70 = (47)65 +35= (48)4 × 120=
(49)55-37= (50)38-19=
28×32= 54×25 = 48×61= 39×42 =
38+25×31 48+52×21 87+35×49
(1)25×4 = (2)30 + 700 = (3)73-30 =
(4)1400+1400= (5)48÷ 4= (6)33+( )=100
(7)40÷ ( ) =20 (8)3×( )=3000 (9)60÷6 =
(10)2×20+2= (11)80×2×0= (12)52 ÷ 4 =
(13)30×3+ 4= (14)80÷5÷4 = (15)68-19=
(16)179 -79 = (17)72 ÷9= (18)98+17-36=
(19)30+15+30+15