1、脱式计算 完成时间:------- (1)(250-150)÷(30÷6) (2) 10×4-20÷4 = = = = (3) (4870-3675)+7200÷9 (4) 300-(300-222) = = = = (5) (150-75)×(25-20) (6) 72÷8+9×5 =
2、 = = = (7) 72÷9-36÷6 (8) 25÷5-16÷4 = = = = 脱式计算 完成时间:------- (1)(9467-5642)÷(350÷70) (2) 100-50÷5 = = = = (3) 35÷5+8×7
3、 (4) 35-35÷7 = = = = (5) (1+7)×(16-6) (6) 6×250×0 = = = = (7)75÷15+20×5 (8) 32÷(32÷16) = = =
4、 = 脱式计算 完成时间:------- (1) 56÷7+36÷6 (2) 21×4-54÷9 = = = = (3) 1000+(1000-988) (4) 42÷7+36÷6 = = = = (5) 640+60×4 (6) 525÷5+42÷6 =
5、 = = = (7) 500×(400-396) (8) 564+(464-453) = = = = 脱式计算 完成时间:------- (1) (72÷9)÷(56÷8) (2) 2400÷6-45 = = =
6、 = (3)(150-75)×(25-20) (4) 12÷6+45×3 = = = = (5) 640+60×4 (6) 525÷5+42÷6 = = = = (7) 33÷11+4×9 (8) 3390-10×95 =
7、 = = 脱式计算 完成时间:------- (1) 37×4+19×8 (2) 72÷9-5 = = = = (3) 180×9-42÷6 (4) 602-12×30 = = = = (5) 600×8÷3 (6) 8×(91
8、0-720) = = = = (7) 36÷4+21×2 (8) 434+25×5 = = = = 脱式计算 完成时间:------- (1) 12÷6+45×3 (2) 8×(910-720) = = = =
9、 (3) 72÷9-36÷6 (4) 800× 7-180 = = = = (5) 5×7-48÷6 (6) 900÷(71-68) = = = = (7) (72÷9)÷(56÷8) (8) 160-160÷80 = = =
10、 = 脱式计算 完成时间:------- (1) 25÷5+42÷6 (2) 60×(23-17) = = = = (3) (9467-5642)÷(350÷70) (4) 65×9-450 = = = = (5) 500×(400-396) (6) 687+999÷3 =
11、 = = = (7) 760-540+1110 (8) 1600÷2+230 = = = = 脱式计算 完成时间:------- (1) 25÷5-16÷4 (2) 60×8+1570 = = = = (3) 125×8÷100
12、 (4) 80×6×2 = = = = (5) 33÷11+4×9 (6) 32÷(32÷16) = = = = (7) 900÷(71-68) (8) 600×8÷3 = = = = 脱式
13、计算 完成时间:------- (1) 36÷4+21×2 (2) 120×5÷2 = = = = (3) 7650-(546+4530) (4) 14×6+9×5 = = = = (5) 42÷7+36÷6 (6) 64÷8+456 =
14、 = = = (7) (4870-3675)+7200÷9 (8) 202+36÷9 = = = = 脱式计算 完成时间:------- (1) 960÷4×9 (2) 3090+6×6 = = = = (3) (111+189)×3
15、 (4) 60×(23-17) = = = = (5) 35÷5+8×7 (6) 54 ÷ 9 ×8 = = = = (7) 66×5+774 (8) 270 ÷ 3 ×9 = = =
16、 = 脱式计算 完成时间:------- (1) 10×4-20÷4 (2) 6700+72÷8 = = = = (3) 21×4-54÷9 (4) 450÷5+1250 = = = = (5) 64÷8+456 (6) 807+20÷2 =
17、 = = = (7) 72÷8+9×5 (8) 810×4÷4 = = = = 脱式计算 完成时间:------- (1) 75÷15+20×5 (2) 2×80÷4 = = = = (3) 9×4+42
18、0 (4) 750+550÷5 = = = = (5) 75÷15+20×5 (6) 350÷5×9 = = = = (7) 153÷153+657 (8) 66×5+774 = = = =






