Free Printable monomi: somme e sottrazioni

1.

$2a+3a=$

a)

$5a$

b)

$6a$

c)

$5a^2$

d)

$6a^2$

2.

$2a+3b=$

a)

$5ab$

b)

$6ab$

c)

$2a+3b$

d)

$6a^2b^2$

3.

$5x-6x=$

a)

$-11x^2$

b)

$-30x^2$

c)

$11x$

d)

$-x$

4.

$b+b=$

a)

$b^2$

b)

$2b$

c)

$0$

d)

$2b^2$

5.

$a+b+2a+3b=$

a)

$ab+6ab$

b)

$3a+4b$

c)

$2a^2+3b^2$

d)

$6a^2b^2$

6.

$+3ab-5ab$

a)

-2ab

b)

+8ab

c)

-8ab

d)

+2ab

7.

Quale delle seguenti addizioni tra monomi è corretta?

a)

-2a+4a = - 2a

b)

+2a - 3a = - a

c)

-2a - 4a = 8a²

8.

Quale delle seguenti addizioni tra monomi è corretta?

a)

-2a - 4a = 8a²

b)

+2a+3a = 5a²

c)

-2a+3a = a

9.

$\left(-7z^2\right)+\left(-3z^2\right)=$

a)

$-10z^2$

b)

$-4z^2$

c)

$+21z^4$

10.

$-3x^2\ +\ \left(-5x^2\right)=$

a)

$8x^2$

b)

$-8x^2$

c)

$-3-5$

d)

$+20x^2$

11.

$x\ +\ 2y\ -5x\ +8y\ =$

a)

$-4x\ +\ 10y$

b)

$16xy$

c)

$6xy$

d)

$6x\ +\ 10y$

12.

$+5a^3b^2\ +7a^3b^2=$

a)

$13a^{3\ }b^2$

b)

$12a^2b^2$

c)

$12a^{3^{ }}b^2$

monomi: somme e sottrazioni

Total questions: 12

Worksheet time: 7mins

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