a: \(138\cdot53+138\cdot47\)
\(=138\cdot100=13800\)
b: \(316\cdot4+316\cdot2+316\cdot3+316\)
\(=316\cdot10\)
=3160
c: \(134\cdot16-134\cdot5-134\)
\(=134\cdot10=1340\)
a) 138x53+138x47=138x(53+47)=138x100=13800
b)316x4+316x2+316x3+316=316x(4+2+3+1)=316x10=3160
c)134x16-134x5-134=134x(16-5-1)=134x10=1340
a) \(138\times53+138\times47=138\times\left(53+47\right)=138\times100=13800\)
b) \(316\times4+316\times2+316\times3+316=316\times\left(4+2+3+1\right)=316\times10=3160\)
c) \(134\times16-134\times5-134=134\times\left(15-5-1\right)=134\times10=1340\)
a) 138 x 53 + 138 x 47
= 138 x ( 53 + 47 )
= 138 x 100
= 13800
b) 316 x 4 + 316 x 2 + 316 x 3 + 316
= 316 x 4 + 316 x 2 + 316 x 3 + 316 x 1
= 316 x ( 4 + 2 + 3 + 1 )
= 316 x 10
= 3160
c) 134 x 16 - 134 x 5 - 134
= 134 x 16 - 134 x 5 - 134 x 1
= 134 x ( 16 - 5 - 1 )
=134 x 10
= 1340