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1、精选学习资料 - - - - - - - - - 四年级数学整数简便运算 120 道(1) 67 423358 (10) 163 837 8 (2) 258 582674 (11) 202 13 (3) 125 16 (12) 77 4 5 (4) 50 (2 4) 25 (13) 27 99 (5) 7 8 3 125 (14) 48 250 (6) 26 103 (15) 98 303 (7) 501 12 (8) 25 (40+8)(9) 39 1461 14 (16) 49 49 49 (17) 55 2525 45 (18) 123 6723 67 名师归纳总结 - - - - -
2、- -第 1 页,共 15 页精选学习资料 - - - - - - - - - (19) 39 10139 (29)480 15 (20) 99 6464 (30)21 99 (21) 76 2324 23 (31)125 32 (22) 12 19 12 (32)12 301 (23) 21 2547946 (33)75 3 4 (24)25 16 5 (34)1999 19 (25)52 3248 32 (26)18 13718 37 (27)450 18 (28)420 35 (35)256 946 9 (36)1313 49 (37)(25+125) 8 (38)541 6767 44
3、1 名师归纳总结 - - - - - - -第 2 页,共 15 页精选学习资料 - - - - - - - - - (39)43 201 (40)102 35 (41)304 22 (42)(30+4) 25 (49)68 4868 2 (50)5 2763 5 (51)12 (405)(52)64 914 9 (43)38 762 7 (53)35 98 (44)152 8148 8 (54)23 13434 23 (45)16 401 (55)102 45 (46)103 23 (56)648203 (47)(302) 15 (57)98 32 (48)125 (8+16)(58)44
4、25 名师归纳总结 - - - - - - -第 3 页,共 15 页精选学习资料 - - - - - - - - - (59)6315 2 (69)36 25 (60)4343 39 (70)304297 (61)27 3737 23 (62)256 756 7 (63)48 10148 (64)99 6262 (65)41 99 (66)76598 (71)18 4518 55 (72)226 1326 13 (73)15 30115 (74)(30+8) 25 (75)25 6525 25 (76)75 14175 40 (67)560 16 (77)125 18 (68)201 34
5、(78)25 3525 名师归纳总结 - - - - - - -第 4 页,共 15 页精选学习资料 - - - - - - - - - (79)71 2371 13 (89)25 5 16 (80)125 (808)(81)101 8989 (82)88 2222 12 (83)28 5743 28 (84)202 41 (85)25 19 4 (90)5656 49 (91)57 2626 43 (92)373 973 9 (93)78 10178 (94)199 5353 (95)25 12424 25 (86)479947 (96)250 28 (87)103 37 (97)125 1
6、6 (88)34 201 (98)250 9 4 名师归纳总结 - - - - - - -第 5 页,共 15 页精选学习资料 - - - - - - - - - (99)48 125 (109)101 8585 (100)24 250 (110)25 19 (101)402 15 (102)25+250) 4 (103)199 9199 (104)27 1882 27 (105)2 4646 18 (106)401 25 (111)152 4951 152 (112)50 (608)(113)93 9993 (114)13 125 8 (115)125 1763 125 (116)49214
7、5155 (107)72 101 (117)43 25 2 (108)42 (301)(118)24 25 名师归纳总结 - - - - - - -第 6 页,共 15 页精选学习资料 - - - - - - - - - (119)28 11128 11 (120)63 891 6363 名师归纳总结 - - - - - - -第 7 页,共 15 页精选学习资料 - - - - - - - - - 参考答案 =25 40+25 8 =1000+200 =1200 (1) 67 42 3358 (9) 39 1461 14 第 8 页,共 15 页 =(67+33)+(42+58) =(39+
8、61) 14 =100+100 =100 14=1400 =200 (10) 163 837 8 (2) 258 582674 =(163+37) 8 =25858( 26+74) =200 8=1600 =200-100 (11) 202 13 =100 =(200+2) 13 (3) 125 16 =200 13+2 13 =125 8 2 =2600+26 =1000 2 =2626 =2000 (12) 77 4 5 (4) 50 ( 2 4) 25 =77 ( 4 5) =(50 2) ( 4 25) =77 20=1540 =100 100 (13) 27 99 =10000 =2
9、7 ( 100-1 )(5) 7 8 3 125 =27 100-27 1 =(7 3) ( 8 125) =2673 =21 1000=21000 (14) 48 250 (6) 26 103 =12 4 250 =26 ( 100+3) =12 ( 4 250)=26 100+26 3 =12 1000 =2600+78 =12000 =2678 (15) 98 303 (7) 501 12 =98+3+300 =(500+1) 12 =102+300 =500 12+1 12 =402 =6000+12 (16) 49 49 49 =6012 =49 ( 1+49)(8) 25 ( 40
10、+8) =49 50 名师归纳总结 - - - - - - -精选学习资料 - - - - - - - - - =2450 =3200 (17) 55 2525 45 (26)18 13718 37 =25 ( 55+45) =18 ( 137-37 ) =25 100 =18 100 =2500 =1800 (18) 123 6723 67 (27)450 18 =(123-23 ) 67 =450 ( 3 6) =100 67=6700 =450 3 6 (19) 39 10139 =150 6 =39 ( 101-1 ) =25 =39 100=3900 (28)420 35 (20)
11、99 6464 =420 ( 7 5) =( 99+1) 64 =420 7 5 =100 64 =60 5=12 =6400 (29)480 15 (21) 76 2324 23 =480 3 5 =(76+24) 23 =160 5 =100 23 =32 =2300 (30)21 99 (22) 12 19 12 =21 ( 100-1 ) =12 ( 1+19)=21 100-21 1 =12 20 =2100-21 =240 =2079 (23) 212547946 (31)125 32 =(21 79)+(25446)=125 8 4 =100+300=400 =1000 4=40
12、00 (24) 25 16 5 (32)12 301 =25 4 4 5 =12 300+1 =(25 4) ( 4 5)=12 300+12 1 =100 20=2000 =3600+12=3612 (25) 52 32 48 32 名师归纳总结 =(5248) 32 (33)75 3 4 第 9 页,共 15 页 =100 32 =75 4 3 - - - - - - -精选学习资料 - - - - - - - - - =300 3=900 =750+100=850 第 10 页,共 15 页(34) 1999 19 (43)38 762 7 =19 99+1 =38+62 7 =1900
13、 =100 7 (35) 256 9 46 9 =700 =256-46 9 (44)152 8148 8 =210 9=1890 =152+148 8 (36) 1313 49 =300 8=2400 =13 1+49 (45)16 401 =13 50=650 =16 400+1 (37)( 25+125) 8 =16 400+16 1 =25 8+125 8 =6400+16=6416 =200+1000 (46)103 23 =1200 =100+3 23 (38) 541 6767 441 =100 23+3 23 =541-441 67 =230069 =100 67=6700 =
14、2369 (39) 43 201 (47)( 302) 15 =43 200+1 =30 15+2 15 =43 200+43 1 =45030=480 =8600+43=8643 (48)125 ( 8+16)(40) 102 35 =125 8+125 16 =100+2 35 =1000+2000 =100 35+2 35 =3000 =3500+70 (49)68 4868 2 =3570 =68 48+2 (41) 304 22 =68 50 =300+4 22 =3400 =300 22+4 22 (50)5 2763 5 =6600+88 =5 27 63 =6688 =5 10
15、0=500 (42)( 30+4) 25 (51)12 ( 40 5) =30 25+4 25 =12 40-12 5 名师归纳总结 - - - - - - -精选学习资料 - - - - - - - - - =480-60 =43 40 =420 =1720 (52) 64 914 9 =64-14 9 (61)27 3737 23 =50 9=450 =27 23 37 (53) 35 98 =50 37 =35 100-2 =1850 =35 100-35 2 =3500-70 (62)256 756 7 =3430 =256 56 7 (54) 23 13434 23 =200 7 =
16、23 134 34 =1400 =23 100=2300 (55) 102 45 (63)48 10148 =100+2 45 =48 101-1 =100 45+2 45 =48 100 =450090 =4800 =4590 (64)99 6262 (56) 648203 =99+1 62 =648+2+201 =100 62=6200 =650+201=851 (65)41 99 (57) 98 32 =41 100-1 =100-2 32 =41 100-41 1 =100 32-2 32 =4100-41 =3200-64 =4059 =3136 (66)76598 (58) 44
17、25 =765+100-2 =11 4 25 =863 =11 100=1100 (59) 6315 2 (67)560 16 第 11 页,共 15 页 =63+30=93 =560 4 4 (60) 4343 39 =560 4 4 =43 1+39 =140 4 名师归纳总结 - - - - - - -精选学习资料 - - - - - - - - - =35 =75 101 第 12 页,共 15 页(68) 201 34 =7575 =200+1 34 (77)125 18 =200 34+1 34 =125 10+8 =680034 =125 10+125 8 =6834 =1250
18、+1000 (69) 36 25 =2250 =9 4 25 (78)25 3525 =9 100=900 =25 35+1 (70) 304297 =25 36 =301+3+197 =25 4 9 =501 =900 (71) 18 45 18 55 (79)71 2371 13 =45+55 18 =71 23-13 =100 18 =710 =1800 (80)125 ( 808)(72) 226 1326 13 =125 80-125 8 =226-26 13 =10000-1000 =200 13 =9000 =2600 (81)101 8989 (73) 15 30115 =10
19、1-1 89 =15 301-1 =8900 =15 300 (82)88 2222 12 =4500 =88+12 22 (74)( 30+8) 25 =2200 =30 25+8 25 (83)28 5743 28 =750+200=950 =28 57+43 (75) 25 65 25 25 =2800 =25 65 25 (84)202 41 =25 100 =200+2 41 =2500 =200 41+2 41 (76) 75 14175 40 =8200+82 =75 141-40 =8282 名师归纳总结 - - - - - - -精选学习资料 - - - - - - - -
20、- (85) 25 19 4 =78 101 1 =25 4 19 =7800 =1900 (94)199 5353 (86) 47 99 47 =199+1 53 =47 99 1 =10600 =47 100 (95)25 12424 25 =4700 =25 124 24 =2500 (87) 103 37 (96)250 28 =100+3 37 =250 4 7 =100 37+3 37 =1000 7 =3700+111 =7000 =3811 (97)125 16 (88) 34 201 =125 8 2 =34 200+1 =1000 2 =34 200+34 1 =2000
21、=6800+68=6868 (98)250 9 4 (89) 25 5 16 =250 4 9 =25 4 4 5 =1000 9 =100 20=2000 =9000 (90) 5656 49 =56 49+1 (99)48 125 =56 50 =6 8 125 =2830 =6000 (91) 57 26 26 43 (100)24 250 =57+43 26 =6 4 250 =100 26 =6000 =3600 (92) 373 9 73 9 (101)402 15 第 13 页,共 15 页 =373-73 9 =400+2 15 =300 9 =400 15+2 15 =270
22、0 =6000+30 (93) 78 10178 =6030 名师归纳总结 - - - - - - -精选学习资料 - - - - - - - - - (102)25+250 ) 4 =25 20-1 =25 4+250 4 =25 20-25 =100+1000 =500-25 =1100 =475 (103)199 9199 (111)152 49 51 152 =199 9+1 =152 49 51 =1990 =152 100 (104)27 1882 27 =15200 =27 18 82 (112)50 ( 608) =2700 =50 60+50 8 (105)2 46 46 1
23、8 =3000+400 =46 18+2 =3400 =46 20 (113)93 9993 =920 =93 99+1 (106)401 25 =9300 =400+1 25 (114)13 125 8 =400 25+1 25 =13 125 8 =10000+25 =13000 =10025 (115)125 17 63 125 (107)72 101 =125 17 63 =72 100+1 =125 80 =72 100+72 1 =10000 =7200+72 (116)492145155 =7272 =492145+155 =492-300 (108)42 ( 301) =192 第 14 页,共 15 页 =42 30-42 1 (117)43 25 2 =1260-42 =43 25 2 =1218 =43 50 (109)101 8585 =2150 =101-1 85 (118)24 25 =8500 =6 4 25 (110)25 19 =600 名师归纳总结 - - - - - - -精选学习资料 - - - - - - - - - (119)28 11128 11 =28 111 11 =2800 (120)63 8 91 6363 名师归纳总结 =63 8+91+1=6300第 15 页,共 15 页- - - - - - -
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