Toán Lớp 6: h) (-10^3).(-10^2)-13^2
b)(-12).(-987)
d)29.(-78).(-9).(-11)
g)(-7).(-7).(-7)+7^3
i)(-8).(-8).(-8).(-8)-8^4+10^5
mk đang cần gấp mong ai bt lm giúp mk với
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Toán Lớp 6: h) (-10^3).(-10^2)-13^2
b)(-12).(-987)
d)29.(-78).(-9).(-11)
g)(-7).(-7).(-7)+7^3
i)(-8).(-8).(-8).(-8)-8^4+10^5
mk đang cần gấp mong ai bt lm giúp mk với
Comments ( 2 )
h)\\
\left( { – {{10}^3}} \right).\left( { – {{10}^2}} \right) – {13^2}\\
= {10^5} – {13^2}\\
= 100000 – 169\\
= 99831\\
b)\left( { – 12} \right).\left( { – 987} \right)\\
= 12.987\\
= \left( {10 + 2} \right).987\\
= 10.987 + 2.987\\
= 9870 + 1974\\
= 11844\\
d)29.\left( { – 78} \right).\left( { – 9} \right).\left( { – 11} \right)\\
= – 29.78.99\\
= – 223938\\
g)\left( { – 7} \right).\left( { – 7} \right).\left( { – 7} \right) + {7^3}\\
= – {7^3} + {7^3}\\
= 0\\
i)\\
\left( { – 8} \right).\left( { – 8} \right).\left( { – 8} \right).\left( { – 8} \right) – {8^4} + {10^5}\\
= {8^4} – {8^4} + {10^5}\\
= {10^5}\\
= 100000
\end{array}$