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Unidad 1· La era digital

Lección 1Numeros enteros

Multiplicación de números enteros

1. Representa en la recta numérica cada multiplicación y calcula el producto.

a.

4\cdot(-4)=\boxed{\quad\quad\quad}

\begin{aligned}&\mathbf{b}.\ 5\cdot(-3)=\begin{bmatrix}\\ &-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1&-1\\&\end{bmatrix}\\ \end{aligned}

C.

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d.

\begin{aligned}&(-8)\bullet1=\begin{vmatrix}\\ &\end{vmatrix}\\ &\quad\blacktriangleleft\begin{vmatrix}+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1\end{vmatrix}\\ &\quad-20\quad-15\quad-10\quad-5\quad0\quad5\quad10\quad15\quad20\\ \end{aligned} (-8)\cdot1=\boxed{\hspace{2cm}} \begin{aligned}&(-8)\bullet1=\begin{vmatrix}\\ &\end{vmatrix}\\ &\quad\blacktriangleleft\begin{vmatrix}+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1\end{vmatrix}\\ &\quad-20\quad-15\quad-10\quad-5\quad0\quad5\quad10\quad15\quad20\\ \end{aligned}

2. Resuelve las siguientes multiplicaciones:

a.

(-5)\cdot6=\boxed{\hspace{2cm}}

(-8)\cdot4=\boxed{\quad}

g.

(-8)\cdot8=\boxed{\hspace{2cm}}

b.

(-1)\cdot(-10)=\boxed{\quad}

\mathbf{e},\quad(-3)\cdot(-9)=\boxed{\quad}

h.

(-15)\cdot0=\boxed{\quad}

C

1\cdot(-1)=\sqrt[3]{}

17\cdot(-4)=\boxed{\quad}

30\cdot(-2)=\boxed{\quad}

3. Respetando la prioridad de las operaciones, calcula el resultado de cada expresión.

a.

5\cdot(-3)+(-2)\cdot9=\boxed{\hspace{2cm}}

C.

(-2)\cdot(-6)+10\cdot(-3)=\boxed{\quad}

b.

(-4)\cdot(-3)\cdot(-2)\cdot(-3)=\boxed{\begin{aligned}&\\ &\end{aligned}}

d.

(-3)\cdot(5+4)\cdot(-2)=\boxed{\quad}





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