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354 x 73 + 354 x 20 + 6 x 354 + 354
= 354 x ( 73 + 20 + 6 + 1 )
= 354 x 100
= 35400
a) \(\left(-354\right)-75\)
\(=-429\)
b) \(\left(-445\right)-\left(-548\right)\)
\(=\left(-445\right)+548\)
\(=103\)
c) \(\left|-72\right|-455\)
\(=72-455\)
\(=-383\)
d) \(-\left|-1945\right|-\left|-67\right|\)
\(=-1945-67\)
\(=-2012\)
\(2569+354+78\)
\(=2923+78\)
\(=3001\)
\(2493-346+95\)
\(=2147+95\)
\(=2242\)
\(58+632-458\)
\(=690-458\)
\(=232\)
125 x 3 + 134 x 3
=(125+134)x3
=259x3
=777
354 x 2 - 107 x 2
=(354-107)x2
=247x2
=494
a, 125x3+134x3=375+402=777
125x3+134x3=(125+134)x3=777
b, 354x2-107x2=708-214=494
354x2-107x2=(354-107)x2=494
a)
`127+246+273+354`
`=(127+273)+(246+354)`
`=400+600`
`=1000`
b)
`1,58+3,04+6,96+3,42`
`=(1,58+3,42)+(3,04+6,96)`
`=5+10`
`=15`
c)
`1/2+1/3+1/5+1/6`
`=(1/2+1/3+1/6)+1/5`
`=(3/6+2/6+1/6)+1/5`
`=6/6+1/5`
`=1+1/5`
`=5/5+1/5`
`=6/5`
a, 127 + 246 + 273 + 354
= ( 127 + 273) + ( 246 + 354)
= 400 + 600
= 1000
b, 1,58 + 3,04 + 6,96 + 3,42
= ( 1,58 + 3,42) + ( 3,04 + 6,96)
= 5 + 10
= 15
c, \(\dfrac{1}{2}\) + \(\dfrac{1}{3}\) + \(\dfrac{1}{5}\) + \(\dfrac{1}{6}\)
= ( \(\dfrac{1}{2}\) + \(\dfrac{1}{3}\) + \(\dfrac{1}{6}\)) + 0,2
= 1 + 0,2
= 1,2