《2025年新思维口算题卡五年级数学下册苏教版》

1. 口算。
① $7.51 + 1.25 =$ ⑨ $54\div27 =$
② $8.1 + 3.2 =$ ⑩ $3.9\div10 =$
③ $19.84 + 0.8 =$ ⑪ $0.108\div9 =$
④ $5.18\times2 =$ ⑫ $4.5\times0.3 =$
⑤ $25\div0.25 =$ ⑬ $2.23\times0.3 =$
⑥ $9.9\div11 =$ ⑭ $52\div13 =$
⑦ $3.5\times0.01 =$ ⑮ $0.3\times3.22 =$
⑧ $0\times3.44 =$ ⑯ $7\div1.4 =$

答案： 1. ① 8.76 ② 11.3 ③ 20.64 ④ 10.36 ⑤ 100 ⑥ 0.9 ⑦ 0.035 ⑧ 0 ⑨ 2 ⑩ 0.39 ⑪ 0.012 ⑫ 1.35 ⑬ 0.669 ⑭ 4 ⑮ 0.966 ⑯ 5

2. 在( )里填合适的质数。
① $8 = (\ \ \ \ \ )+(\ \ \ \ \ )$
② $35 = (\ \ \ \ \ )\times(\ \ \ \ \ )$
③ $9 = (\ \ \ \ \ )+(\ \ \ \ \ )$
④ $49 = (\ \ \ \ \ )\times(\ \ \ \ \ )$
⑤ $42 = (\ \ \ \ \ )\times(\ \ \ \ \ )\times(\ \ \ \ \ )$
⑥ $10 = (\ \ \ \ \ )+(\ \ \ \ \ )+(\ \ \ \ \ )$
⑦ $8 = (\ \ \ \ \ )\times(\ \ \ \ \ )\times(\ \ \ \ \ )$

答案： 2. ① 8 = 3 + 5 ② 35 = 5×7 ③ 9 = 2 + 7 ④ 49 = 7×7 ⑤ 42 = 3×2×7 ⑥ 10 = 2 + 3 + 5 ⑦ 8 = 2×2×2