вычисли с решениями как решали™
пример:19*30=19*(3*10)=(19*3)*10
15·16=
27·40=
18·500=
9·4000=
6·3000=
пример:19*30=19*(3*10)=(19*3)*10
15·16=
27·40=
18·500=
9·4000=
6·3000=
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Answers & Comments
27*40=27*(4*10)=(27*4)*10
18*500=18*(5*100)=(18*5)*100
9*4000=9*(4*1000)=(9*4)*1000
6*3000=6*(3*1000)=(6*3)*1000