1、四年级四则运算整数+小数121 111 37(121 111 37) 5 280 650 1345 20 3 1000 (280 650 13) (95 19 5 )74 (120 103) 50 760 10 38(270 180)(30 15)707 35 20 (95 19 5 )741996-9627410000-(5966)64 594045(798-616)(270 180)(30 15)(31540-364)7 125208(12111) (2010-906)(65+15)707 35 205016040 (58+370)(64-45) 120-14418+35 347+452-
2、416052 (58+37)(64-95)95(64-45) 178-14556+42 420+580-642128 812-700(9+3111) (136+64)(65-34523) 85+14(14+20826)121 111 37 (120 103) 50(284+16)(512-820818) 120-36418+35 (58+37)(64-95) (121 111 37) 5280 650 13 1000 (280 650 13) 760 10 38984687(36060) 508345(15261521)(12485)1226 (5921)(968) 32513(266-250
3、) 140-905+6789405-29402821 920-1680407 690+4752-398 148+332864-75 3602432+730 2100-94+4854 51+(2304-2042)23 4215+(4361-716)81 (247+18)2725 36-720(36018) 1080(63-54)80 (528+912)5-6178 85284138-904 264+318-828069 (174+209)26- 9000 814-(278+322)15 1406+735945 3168-782838+504 796-5040(6307) 285+(3000-37
4、2)36120-14418+35 347+452-416052 (58+37)(64-95) 95(64-45) 178-14556+42812-700(9+3111) 85+14(14+20826) (284+16)(512-820818) 120-36418+35 (58+37)(64-95) (6.8-6.80.55)8.5 0.124.80.124.8 (3.21.5+2.5)1.6 3.2(1.5+2.5)1.6 7.20.8-1.25 6-1.193-0.436.5(4.8-1.24) 0.681.9+0.321.9 10.15-10.750.4-5.7 5.8(3.87-0.13
5、)+4.23.74 32.52-(6+9.7283.2)2.(136+64)(65-34523)420+580-642128(58+370)(64-45)0.4566.223.78 15.89(6.755.8)613.75(3.756.48) 615.75+3.590.59+14.2566.868.661.34 0.2516.24 (1.250.125)815.613.115.615.62.1 4.87.8780.52 4.8100.1 56.59.95.65 7.0910.80.8725.48(9.40.52)3.6510.1 15.20.254 0.89100.1 146.5(2346.5
6、)3.834.563.835.44 4.3612.58 9.7999.7 27.53.77.53.78.542.50.4 0.65101 3.20.2512.5 (45.932.7)80.125 3.140.6831.40.032 5.61.250.82.50.47.20.22.41.4 8.91.01 7.74(2.81.3)1.52.23.92.73.97.3 181.80.1250.8 12.79.91.27 21(9.33.7)5.6 15.02-6.8-1.02 5.411-5.4 2.316+2.323+2.3 9.43-(6.28-1.57) 3.654.736.50.37 46572386 13.70.253.74 2.229.9+6.666.7 1010.87-0.9187 0.79199 23.40.813.47.2 0.324030.253612.7(3.70.84) 0.250.73512.50.960.8 10.49.60.50.8(4.31.25) 2.4102 (2.50.25)0.4 63.42.50.4 3.9(1.35) (7.71.54)0.7 2.52.4 15(0.150.4)0.351.2520.8 150.25 0.250.046 2.523.4 1.08251.2(9.62.4)4.8 8.91.14.7 2.75.43.9