如题所述
温馨提示:答案为网友推荐,仅供参考
第1个回答 2020-05-27
98 × 34
= (90 + 8) × (30 + 4)
= 90 ×30 + 90 × 4 + 30 × 8 + 8 × 4
= 2700 + 360 + 240 + 32
= 2700 + 600 + 32
= 3300 + 32
= 3332
= (90 + 8) × (30 + 4)
= 90 ×30 + 90 × 4 + 30 × 8 + 8 × 4
= 2700 + 360 + 240 + 32
= 2700 + 600 + 32
= 3300 + 32
= 3332