谁会11×22+0.22×3300+330×4.4这道题?要用脱式最简便方法计算?
1个回答
2022-12-14 · 百度认证:北京惠企网络技术有限公司官方账号
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11×22+0.22×3300+330×4.4
=11×22+22×33+33×44
=11×22+22×33+33×2×22
=(11+33+66)×22
=110×22
=2420
或:
11×22+0.22×3300+330×4.4
=11×22+22×33+33×44
=(11+33)×22+33×44
=44×22+33×44
=44×(22+33)
=44×55
=2420
.把小数变成正数,灵活运用学到的知识,难题也能轻易攻克