123x0-1+1=?????
Ai trả lời nhanh và đúng thì mk kb nha !!!!@
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4.7 x 14.5 - 4.7 x 4.5
=4.7 x ( 14.5 - 4.5)
=4.7 x 10
=47
tk cho mk nha !
\(4,7\times14,5-4,7\times4,5\)
\(=4,7\times\left(14,5-4,5\right)\)
\(=4,7\times10\)
\(=47\)
A)2.125.2002.8.5=(125.8).(2.5).2002. C)28.47+28.43+72.29+72.61 D)26.54+52.73
=1000.10.2002=10000.2002=20020000 =28.(47+43)+72.(29+61) =26.27.2+52.73
B)36.42+2.17.18+9.41.6=36.42+(2.18).17+9.41.6 =28.90+72.90 =(26.2).27+52.73
= 36.42 +2.17.18+41 .54 =90.(28+72) =52.27+52.73
=(36+54).(42+18).(41+2+17)=90.60.60=324000 =90.100=9000 =52.(27+73)=52.100=5200
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123 × 0 - 1 + 1
= 0 - 1 + 1
= -1 + 1
= 0