1.2含有两级运算乘加-【勤径千里马】2026-2027学年三年级上册数学同步竖式脱式计算（北师大版·新教材）

三年级·北师版·上册」 参考答案 一、混合运算 ⑨27-17+10 1036+38-16 1.同级运算 加减混合(1) =10+10 =74-16 ①15+54-42 ②21+33-36 =20 =58 =69-42 =54-36 =27 =18 ①35+26-12 232-16+12 ③16+62-45 ④50+20-60 =61-12 =16+12 =78-45 =70-60 =49 =28 =33 =10 3.含有两级运算 —一乘加(1） 540+30-20 ⑥18+51-6 =70-20 =69-6 ①6×8+7 ②4×8+36 =50 =63 =48+7 =32+36 =55 =68 ⑦90-80+50 822+45-31 =10+50 =67-31 ③5×6+47 ④5×9+27 =60 =36 =30+47 =45+27 ⑨80-30+40 =77 =72 =50+40 =90 ⑤6×8+35 ⑥5×5+72 =48+35 =25+72 2.同级运算— 加减混合(2) =83 =97 ①16+36-11 ②40+50-80 =52-11 =90-80 ⑦8×9+13 ⑧3×6+52 =41 =10 =72+13 =18+52 ③26+42-8 ④15+29-15 =85 =70 =68-8 =44-15 =60 =29 ⑨6×9+2 =54+2 580-60+10 ⑥34+49-24 =56 =20+10 =83-24 =30 =59 4.含有两级运算— 乘加(2) ⑦27-18+23 ⑧24-19+13 ①7×7+21 ②7×8+14 =9+23 =5+13 =49+21 =56+14 =32 =18 =70 =70 1 同步竖式、脱式计算 ③65+2×9 ④71+6×2 6.含有两级运算 —一乘减(2)） =65+18 =71+12 ①58-4×7 ②50-2×4 =83 =83 =58-28 =50-8 =30 533+4×3 ⑥29+3×7 =42 =33+12 =29+21 ③8×9-31 ④8×7-24 =45 =50 =72-31 =56-24 =41 =32 ⑦55+6×6 ⑧38+6×4 =55+36 =38+24 ⑤5×5-12 68×4-11 =91 =62 =25-12 =32-11 ⑨5×7+43 04×9+36 =13 =21 =35+43 =36+36 ⑦60-3×8 870-9×4 =78 =72 =60-24 =70-36 ①8×8+19 25×8+24 =36 =34 =64+19 =40+24 ⑨5×9-34 1059-8×6 =83 =64 =45-34 =59-48 5.含有两级运算 —乘减(1) =11 =11 ①5×6-4 ②8×8-7 ①90-5×8 211-3×3 =30-4 =64-7 =90-40 =11-9 =26 =57 =50 =2 ③7×2-4 ④2×6-11 7.含有两级运算 =14-4 =12-11 —一乘加、乘减(1) =10 =1 ①38+3×8 ②2×6+51 59×9-20 ⑥81-3×7 =38+24 =12+51 =81-20 =81-21 =62 =63 =61 =60 ③63+2×9 ④72-4×6 ⑦64-7×7 ⑧49-6×5 =63+18 =72-24 =64-49 =49-30 =81 =48 =15 =19 ⑤80-2×5 ⑥7×7-21 ⑨4×6-12 =80-10 =49-21 =24-12 =70 =28 =12 ·2·3含有两级运算— 乘加(1) ○易错点分析 脱式计算时，没有将不参与计算的运算符号和数落下来。.一一：一 计算：9×5+41 ☒错误解答 Q错误改正 9×5+41 9×5+41 计算时不参 与计算的运 45 忘把“+41” 45447 算符号及数 落下来 =86 直接落下来 ⑦计算常练 用时：一 分 秒 错误：- 个 家长评价：☆☆☆☆女一一 ①6×8+7 ②4×8+36 3)5×6+47 45×9+27 5)6×8+35 ⑥5×5+72 78×9+13 8)3×6+52 96×9+2 见此图标显抖音/微信扫码掌握技巧，笔算快人一步！ 3 ④含有两级运算— 乘加(2) ①计算常练 用时： 分秒 错误： 个 家长评价：☆☆☆☆☆ ①7×7+21 27×8+14 ③65+2×9 二 471+6×2 533+4×3 629+3×7 7)55+6×6 8)38+6×4 95×7+43 104×9+36 1①8×8+19 125×8+24 同步竖式、脱式计算·三年级·北师版·上册