Question

1.23x378 +12.3x41.4 +123x2.11=？

此题何解

Answer 1

解，1.23*378+12.3*41.4+123*2.11
=1.23*378+1.23*414+1.23*211
=1.23*(378+414+211)
=1.23*(1000+3)
=1.23*1000+1.23*3
=1230+3.69
=1233.69

Answer 2

1.23×378+12.3×41.4+123×2.11
=123×3.78+123×4.14+123×2.11
=123×（3.78+4.14+2.11）
=123×10.03
=123×10+123×0.03
=1230+3.69
=1233.69

Answer 3

464.94+509.22+259.53=1233.69

Answer 4

=123×（3.78+4.14+2.11）
=123×10.03
=123×10+123×0.03
=1230+3.69
=1233.69

Answer 5

提取公因式会吗？1.23提出来，其他的相加。