999.9*222.2+333.3*333.4简便计算

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999.9*222.2+333.3*333.4简便计算999.9*222.2+333.3*333.4简便计算999.9*222.2+333.3*333.4简便计算999.9×222.2+333.3×3

999.9*222.2+333.3*333.4简便计算
999.9*222.2+333.3*333.4简便计算

999.9*222.2+333.3*333.4简便计算
999.9×222.2+333.3×333.4
=3×333.3×222.2+333.3×333.4
=333.3×(3×222.2)+333.3×333.4
=333.3×666.6+333.3×333.4
=333.3×(666.6+333.4)
=333.3×1000
=333300

999.9×222.2+333.3×333.4
=3×333.3×222.2+333.3×333.4
=333.3×(3×222.2)+333.3×333.4
=333.3×666.6+333.3×333.4
=333.3×(666.6+333.4)
=333.3×1000
=333300