《2025年口算题卡河北少年儿童出版社五年级数学下册苏教版》

解方程。
① 4(x - 5.6) = 1.6 x = ______
② 7(6.5 + x) = 87.5 x = ______
③ (27.5 - 3.5)÷x = 4 x = ______
④ (200 - x)÷5 = 30 x = ______
⑤ 3x + 9 = 27 x = ______
⑥ x + 2x + 18 = 78 x = ______
⑦ (300 - 150)÷x = 30 x = ______
⑧ (x - 60)÷60 = 4 x = ______
⑨ 12x - 4x = 300 x = ______
⑩ 7x + 5.3 = 7.4 x = ______
⑪ 3(x + 5)=81 x = ______
⑫ 6x - 3x = 18 x = ______
⑬ x - 0.8x = 6 x = ______
⑭ 15x - 7x = 200 x = ______
⑮ 5x = 40 x = ______
⑯ x + 6 = 27 x = ______
⑰ x + 3.6 = 9 x = ______
⑱ 13x = 65 x = ______
⑲ x + 3.6 = 30 x = ______

答案： 6 6 6 50 6 20 5 300 37.5 0.3 22 6 30 25 8 21 5.4 5 26.4