Toán Lớp 6: (57-1451)+1451
116-99-1
1883-(12345+883)+5
(-5076)-(1365-5076)
(-125).45.(-8)
116.(-991).0.231
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Toán Lớp 6: (57-1451)+1451
116-99-1
1883-(12345+883)+5
(-5076)-(1365-5076)
(-125).45.(-8)
116.(-991).0.231
Comments ( 2 )
a)(57 – 1451) + 1451\\
= 57 – 1451 + 1451\\
= 57 – 0\\
= 57\\
b)116 – 99 – 1\\
= 116 – 100\\
= 16\\
c)1883 – (12345 + 883) + 5\\
= 1883 – 12345 – 883 + 5\\
= \left( {1883 – 883} \right) + \left( { – 12345 + 5} \right)\\
= 1000 – 12340\\
= – 11340\\
d)( – 5076) – (1365 – 5076)\\
= – 5076 – 1365 + 5076\\
= \left( { – 5076 + 5076} \right) – 1365\\
= 0 – 1365\\
= – 1365\\
e)( – 125).45.( – 8)\\
= \left[ {( – 125).( – 8)} \right].45\\
= 1000.45\\
= 45000\\
f)\\
c1)116.( – 991).0.231\\
= – 114956.0.231\\
= 0.321\\
= 0\\
c2)116.( – 991).0.231\\
= 0\left( {so\,nao\,\,nhan\,\,voi\,\,0\,\,cung\,\,bang\,\,0} \right)
\end{array}\]