0.94x2.2+4.4x0.03如何简便运算!

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0.94x2.2+4.4x0.03如何简便运算!
0.94x2.2+4.4x0.03如何简便运算!

0.94x2.2+4.4x0.03如何简便运算!
=0.94×2.2+2×2.2×0.03
=(0.94+0.03×2)×2.2
=1×2.2
=2.2

2.2*0.94+2.2*2*0.03=2.2*(0.94+0.06)=2.2

(1-0.06)*2.2+4.4*0.03
=2.2(1-0.06+2*0.03)
=2.2

9.4×0.22+4.4×0.03

0.94ⅹ2.2+0.06ⅹ2.2=(0.94+0.06)ⅹ2.2=2.2