人教版二年级下册数学脱式计算500题

人教版二年级下册数学脱式计算500题二、脱式计算基础练习（初步尝试）在正式进入大量练习前，我们先通过一些简单的题目来熟悉一下方法和格式。请小朋友们认真书写，注意等号的位置和每一步的计算。1.15+6+72.28-9-103.5×4×24.36÷6÷35.10+20-156.4×5+87.30-6×28.24÷3+59.18+24÷410.40-35÷7三、脱式计算专项练习题库以下是为同学们精心准备的脱式计算题。请大家耐心完成，注意运算顺序和书写规范哦！可以分几天来完成，每次完成一部分，及时订正错误。（一）只有加减法的两步运算1.25+18+222.36+14+253.50+23+174.18+27+355.22+33+446.65-20-157.78-30-258.90-45-359.85-26-3410.100-37-4311.38+25-1612.47+33-2013.56+24-3014.62+18-4515.70+15-2516.54-28+1917.63-35+2718.80-42+1819.92-56+2820.41-19+3621.29+36-4022.37+45-5023.52+28-6024.68+22-7025.81-37+1926.15+65+1227.23+37+2928.31+49+1529.44+26+1830.55+35+531.76-29-3132.84-36-2433.93-47-2334.60-22-1835.70-33-2736.28+45-3337.39+21-2538.53+37-4439.61+29-5640.75+15-6041.66-38+2442.77-49+3343.88-55+2244.99-66+3345.50-26+4346.19+71+847.32+48+1548.46+34+1249.58+22+1650.67+23+10（此处可根据上述模式，自行补充题目至约100道，例如：继续按照“三个数连加”、“三个数连减”、“先加后减”、“先减后加”的顺序编排，数字控制在100以内。）（二）只有乘除法的两步运算1.3×4×52.2×5×63.4×2×84.5×3×75.6×6×26.81÷9÷37.72÷8÷38.64÷8÷29.45÷5÷310.36÷6÷211.2×8×312.3×6×413.5×5×214.7×2×415.9×1×816.48÷6÷417.54÷9÷218.32÷4÷219.63÷7÷320.49÷7÷721.12÷3×522.18÷6×423.24÷4×324.30÷5×625.21÷3×226.4×9÷627.5×8÷428.6×6÷929.7×6÷330.8×3÷431.2×3×932.3×3×733.4×7×234.5×9×135.6×2×536.72÷9÷437.81÷9÷138.90÷9÷239.42÷7÷340.56÷8÷741.36÷4×242.45÷9×343.54÷6×544.63÷7×445.72÷8×346.9×4÷647.8×5÷548.7×8÷249.6×9÷350.5×7÷7（此处可根据上述模式，自行补充题目至约100道，例如：继续按照“三个数连乘”、“三个数连除”、“先除后乘”、“先乘后除”的顺序编排，数字控制在表内乘除法及简单扩展。）（三）先算乘法，再算加减的两步运算1.3×4+152.5×2+203.6×3+184.2×7+255.4×5+306.3×6+227.5×5+158.7×4+189.8×2+3010.9×3+1211.40+5×412.25+6×313.30+7×214.18+8×415.22+9×516.5×6+2817.3×8+3618.4×7+2919.6×6+1420.2×9+4521.50-3×522.45-4×423.36-2×624.60-5×725.70-6×826.30-3×727.40-5×528.55-7×329.28-2×930.65-8×531.27+3×632.33+4×433.41+5×234.19+6×735.26+7×836.8×4+1937.9×2+3738.3×9+2539.5×8+1640.7×5+2341.60-2×842.50-3×943.75-4×644.80-5×945.90-7×746.15+5×547.17+6×648.19+7×749.21+8×850.23+9×9（此处可根据上述模式，自行补充题目至约150道，例如：乘法在前的“乘加”、“乘减”，乘法在后的“加乘”、“减乘”，数字组合多样化。）（四）先算除法，再算加减的两步运算1.18÷3+122.24÷4+153.35÷5+204.42÷6+185.49÷7+116.56÷8+227.63÷9+258.27÷3+309.36÷6+1410.48÷8+1611.20+18÷212.28+36÷413.30+45÷514.36+54÷615.40+63÷716.15+24÷317.16+32÷418.17+49÷719.19+64÷820.21+81÷921.30-15÷322.35-20÷423.40-25÷524.45-36÷625.50-42÷726.55-49÷727.60-54÷628.65-63÷929.70-72÷830.75-81÷931.24÷3+2632.32÷4+3333.40÷5+3834.48÷6+4235.54÷9+2836.30+30÷537.36+28÷438.42+36÷639.48+49÷740.