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How to do the last question on page 26 of the second volume of fourth grade mathematics?
2 1*0.9=( 18.9) 3.7*3=( 1 1. 1)

3.7*6=(22.2)

32 1*0.9=(288.9) 3.7*(9)=33.3

432 1*0.9=(3888.9) 3.7*( 12)=44.4

(5432 1)*0.9=48888.9 (3.7)*( 15)=55.5

(65432 1)*(0.9)=588888.9

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