-2800 100789 947599766436(91327623)(932521)95071363498723(521504)253841223371 (3921)(3966)571256035 848640161215003245 192543867138254(13125)(38) (12+24+80)5070425-509 253212532(25+125) 1781011788436+64847599+275 8310283298199 123181233+8512350(344)32524+16 17899+178 7942+79+7957 7300254 8100475 7527+192 5 31870+13310 4(2565+2528) 138254 (13125)(38)(12+24+80)50 2532125 32(25+125) 10276 5898 178101178 8436+6484 7599+275 83102832 98199 123181233+85123 50(344)3 2524+16 17899+178 7942+79+7957 7300254 810047528084024585(95144024)58870(105202) 80400(430087015)14372727563 81432(135278) 125(331) 37.4(8.67.246.6)156107-772937.85-7.85+6.4155472-5833601265 5006-(502-80) 105126352545381624 500240386 648742 15 84515316124928758+3764-95 178-14556+42 812-7009+311158+3764-95388+(5000-1000)158+262+138 375+219+381+225 50012471021232 181+2564+2719 (13125)(38)(12+24+80)50 178101178 8436+648450(344)32524+167599+275 8310283217899+178 7942+79+7957 7300254 1225 7524 138254 13125)(38) (12+24+80)50 2532125 32(25+125) 88125 10276 178101178 8436+64847599+275 83102832123181233+8512350(344)3 2524+1617899+178 7942+79+7957 235613567217527+192531870+13310123517801665 4(2565+2528)120-14418+359564-4558+3764-95347+452-416052 120-36418+35 58+3764-95 330(6550) 1286816 64(126513) 7505 30+98-415 85-48+26 636-366528056-16 75+2519-8 48065 630-188+122 800-8002020 320+648-7600-6015204204736-3520 254254 98-185+25568568280-80 4126126369369175-752525825880-202+60258258100+45-100+4536-366-61597+34899+11000+8-1000+8 5+9528 100+1-100+1 102+1-102+1 65+351325+75-25+75 40+36020-1013+248672-36+64324-68+32100-36+64四年级两位数乘一位数(1) 94 8 = (2) 57 6 = (3) 9 67 = (4) 26 9 = (5) 41 9 = (6) 57 3 = (7) 7 79 = (8) 62 5 = (9) 21 1 = (10) 3 57 = (11) 5 84 = (12) 8 26 = (13) 5 67 = (14) 37 4 = (15) 8 98 = (16) 6 24 = (17) 98 5 = (18) 12 2 = (19) 9 75 = (20) 68 2 =四年级几百几十数乘一位数(1) 4 30 = (2) 100 4 = (3) 700 5 = (4) 9 800 = (5) 8 80 = (6) 5 200 = (7) 6 300 = (8) 2 600 = (9) 300 9 = (10) 2 400 = (11) 4 50 = (12) 3 20 = (13) 60 1 = (14) 7 600 = (15) 5 90 = (16) 20 1 = (17) 90 3 = (18) 9 300 = (19) 2 100 = (20) 90 6 =四年级小数的加法和减法 (1) 7.64 6.42 (2) 9.31 3.31 (3) 1.44 1.02 (4) 3.42 - 2.19 (5) 8.13 - 7.79 (6) 8.96 - 5.27 (7) 7.37 6.17 (8) 3.77 - 3.00 (9) 2.10 2.34 (10) 1.48 4.54 (11) 7.69 9.31 (12) 7.83 1.96 (13) 7.45 - 5.77 (14) 8.98 - 7.83 (15) 3.08 9.01 (16) 9.17 4.62 (17) 3.79 3.20 (18) 9.51 - 8.59 (19) 5.64 - 2.98 (20) 9.86 - 8.20 四年级两位数乘三位数(1) 624 17 (2) 15 914 (3) 422 74 (4) 894 45 (5) 103 80 (6) 445 32 (7) 49 958 (8) 212 25 (9) 21 498 (10) 80 857 (11) 980 69 (12) 371 16 (13) 70 569 (14) 53 223 (15) 36 499 (16) 516 47 (17) 37 438 (18) 840 78 (19) 918 62 (20) 946 80 四年级整十数除整十数(1) 20 10 (2) 90 10 (3) 30 10 (4) 60 10 (5) 90 30 (6) 60 20 (7) 40 10 (8) 80 20 (9) 80 10 (10) 50 10 (11) 40 20 (12) 80 40 (13) 70 10 (14) 60 30 四年级整十数除几百几十数(1) 920 10 (2) 180 90 (3) 900 20 (4) 420 10 (5) 540 30 (6) 390 30 (7) 520 10 (8) 330 10 (9) 840 20 (10) 330 30 (11) 100 20 (12) 160 20 (13) 270 30 (14) 510 10 (15) 700 10 (16) 690 30 (17) 440 40 (18) 520 40 (19) 420 70 (20) 720 10 四年级整十数除三位数来源 (1) 940 10 (2) 560 10 (3) 100 20 (4) 240 80 (5) 630 10 (6) 280 70 (7) 400 20 (8) 370 10 (9) 550 10 (10) 880 80 (11) 740 10 (12) 300 20 (13) 360 10 (14) 600 40 (15) 900 90 (16) 760 10 (17) 180 60 (18) 900 20 (19) 400 80 (20) 800 50 四年级两位数除三位数标签：四年级 (1) 970 97 (2) 456 24 (3) 544 17 (4) 484 44 (5) 730 73 (6) 924 21 (7) 806 62 (8) 697 41 (9) 870 87 (10) 684 57 (11) 726 66 (12) 816 68