《2025年口算基础训练六年级数学上册人教版》

0.5 - 1% = 0.49
8.9 ÷ 89% = 10
65 × 20% = 13
80 × 40% = 32
2 - 59% = 1.41
90 × 80% = 72
90 ÷ 60% = 150
77 × 20% = 15.4
200% - 45% = 1.55
400 ÷ 80% = 500
3 ÷ 10% = 30
56 × 20% = 11.2
350 ÷ 70% = 500
75 × 40% = 30
27 ÷ 54% = 50
2.4 ÷ 8% = 30
1000 × 65% = 650

答案： 0.5 - 1% = 0.5 - 0.01 = 0.49
8.9 ÷ 89% = 8.9 ÷ 0.89 = 10
65 × 20% = 65 × 0.2 = 13
80 × 40% = 80 × 0.4 = 32
2 - 59% = 2 - 0.59 = 1.41
90 × 80% = 90 × 0.8 = 72
90 ÷ 60% = 90 ÷ 0.6 = 150
77 × 20% = 77 × 0.2 = 15.4
200% - 45% = 2 - 0.45 = 1.55
400 ÷ 80% = 400 ÷ 0.8 = 500
3 ÷ 10% = 3 ÷ 0.1 = 30
56 × 20% = 56 × 0.2 = 11.2
350 ÷ 70% = 350 ÷ 0.7 = 500
75 × 40% = 75 × 0.4 = 30
27 ÷ 54% = 27 ÷ 0.54 = 50
2.4 ÷ 8% = 2.4 ÷ 0.08 = 30
1000 × 65% = 1000 × 0.65 = 650