1.3含有两级运算—乘减-【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）

5含有两级运算— 乘减(1) )易错点分析 计算含有乘法和减法的算式时，先算减法致误。一一：一一一一 计算：6×6-2 ⑧错误解答 Q错误改正 6×6=2 6×6-2 6×4 先算减法致误」 36巴2 24 34先算乘法，再算减法 ⑦计算常练 用时： 分 秒 错误： 个 家长评价：☆☆☆☆女一一 ①5×6-4 ②8×8-7 ③7×2-4 4)2×6-11 59×9-20 681-3×7 764-7×7 8)49-6×5 94×6-12 见此图标显抖音/微信扫码掌握技巧，笔算快人一步！ 6含有两级运算— 乘减(2 ⑦计算常练 用时：分秒错误： 家长评价：☆☆☆☆女一」 ①58-4×7 ②50-2×4 ③8×9-31 48×7-24 55×5-12 ⑥8×4-11 ⑦60-3×8 8)70-9×4 95×9-34 1059-8×6 1①90-5×8 1211-3×3 同步竖式、脱式计算·三年级·北师版·上册‖同步竖式、脱式计算 ③65+2×9 ④71+6×2 =65+18 =71+12 =83 =83 533+4×3 ⑥29+3×7 =33+12 =29+21 =45 =50 ⑦55+6×6 838+6×4 =55+36 =38+24 =91 =62 ⑨5×7+43 104×9+36 =35+43 =36+36 =78 =72 ①8×8+19 25×8+24 =64+19 =40+24 =83 =64 5.含有两级运算—一乘减(1) ①5×6-4 ②8×8-7 =30-4 =64-7 =26 =57 ③7×2-4 ④2×6-11 =14-4 =12-11 =10 -1 59×9-20 681-3×7 =81-20 =81-21 =61 =60 ⑦64-7×7 849-6×5 =64-49 =49-30 =15 =19 ⑨4×6-12 =24-12 =12 6.含有两级运算 乘减(2) ①58-4×7 ②50-2×4 =58-28 =50-8 =30 =42 ③8×9-31 ④8×7-24 =72-31 =56-24 =41 =32 ⑤5×5-12 ⑥8×4-11 =25-12 =32-11 =13 =21 ⑦60-3×8 ⑧70-9×4 =60-24 =70-36 =36 =34 ⑨5×9-34 1059-8×6 =45-34 =59-48 =11 =11 ①90-5×8 211-3×3 =90-40 =11-9 =50 =2 7.含有两级运算 乘加、乘减(1) ①38+3×8 ②2×6+51 =38+24 =12+51 =62 =63 ③63+2×9 ④72-4×6 =63+18 =72-24 =81 =48 ⑤80-2×5 ⑥7×7-21 =80-10 =49-21 =70 =28 2·