《2025年新思维口算题卡五年级数学下册苏教版》

① $700 - x = 70$ $x =$
② $x\div80 = 50$ $x =$
③ $1.2\div x = 0.4$ $x =$
④ $x\div0.6 = 1.5$ $x =$
⑤ $625\div x = 5$ $x =$
⑥ $1010\div x = 10$ $x =$
⑦ $x + 10 = 1000$ $x =$
⑧ $101x = 202$ $x =$
⑨ $3.6x = 25.2$ $x =$
⑩ $100 - x = 79$ $x =$
⑪ $675\div x = 30$ $x =$
⑫ $900\div x = 45$ $x =$
⑬ $810 - x = 90$ $x =$
⑭ $x + 160 = 480$ $x =$
⑮ $x\div1.8 = 0.5$ $x =$
⑯ $903\div x = 3$ $x =$
⑰ $25x = 1600$ $x =$
⑱ $80x = 960$ $x =$
⑲ $300x = 3$ $x =$
⑳ $7.8\div x = 0.39$ $x =$
㉑ $x\div0.7 = 0.7$ $x =$
㉒ $903\div x = 30$ $x =$
㉓ $510 - x = 200$ $x =$
㉔ $x\div11 = 11$ $x =$
㉕ $6.4x = 32$ $x =$
㉖ $240 - x = 40$ $x =$
㉗ $x\div6.5 = 10$ $x =$
㉘ $150 - x = 10$ $x =$
㉙ $x + 14.7 = 28.5$ $x =$
㉚ $17.9 - x = 8.4$ $x =$

答案：  ① 630 ② 4000 ③ 3 ④ 0.9 ⑤ 125 ⑥ 101 ⑦ 990 ⑧ 2 ⑨ 7 ⑩ 21 ⑪ 22.5 ⑫ 20 ⑬ 720 ⑭ 320 ⑮ 0.9 ⑯ 301 ⑰ 64 ⑱ 12 ⑲ 0.01 ⑳ 20 ㉑ 0.49 ㉒ 30.1 ㉓ 310 ㉔ 121 ㉕ 5 ㉖ 200 ㉗ 65 ㉘ 140 ㉙ 13.8 ㉚ 9.5