Question 1

$7\cdot-30=$

Accepted Answer

$-210$

Question 2

$-8\cdot-7=$

Accepted Answer

$56$

Question 3

$-2\cdot-5\cdot-4\cdot3$

Accepted Answer

$-120$

Question 4

$-5\cdot-31\cdot20$

Accepted Answer

$3100$

Question 5

$\frac{1}{8}\cdot29\cdot-16=$

Accepted Answer

$-58$

Question 6

Calculate (with intermediate steps): $-2\cdot(7-5)\cdot-6=$

Accepted Answer

$-2\cdot2\cdot-6=-4\cdot-6=24$

Question 7

$\dfrac{-16}{8}=$

Accepted Answer

$-2$

Question 8

Calculate (with intermediate steps): $\dfrac{15}{-3}-8\cdot-2+3=$

Accepted Answer

$-5--16+3=14$

Question 9

Simplify: $\frac{-14}{21}$

Accepted Answer

$-\frac{2}{3}$

Question 10

$-\frac{2}{9}+\frac{3}{5}=$ (write intermediate steps in your notebook)

Accepted Answer

$\frac{17}{45}$

Question 11

$1\frac{1}{6}-2\frac{2}{3}=$ (write intermediate steps in your notebook)

Accepted Answer

$-1\frac{1}{2}$

Question 12

$-\frac{2}{5}\cdot\frac{3}{4}=$(write intermediate steps in your notebook)

Accepted Answer

$-\frac{3}{10}$

Question 13

$-2\frac{1}{3}\cdot-3\frac{2}{5}=$ (write intermediate steps in your notebook)

Accepted Answer

$7\frac{14}{15}$

Answer

$-5\frac{11}{15}$

Answer

$6\frac{1}{5}$

Answer

$6\frac{2}{15}$

Question 14

What's the opposite of 12?

Accepted Answer

$-12$

Question 15

What's the reciprocal of the opposite of $1\frac{1}{3}$

Accepted Answer

$-\frac{3}{4}$

Question 16

Calculate $2a+4$ for $a=6$

Accepted Answer

$2\cdot6+4=16$

Answer

$2\cdot(6+4)=20$

Answer

$26+4=30$

Answer

$2+6+4=12$

Question 17

Calculate $2-3n$ for $n=-5$ (write down the intermediate steps)

Accepted Answer

$2-3\cdot-5=2--15=17$

Question 18

Calculate $4q-p$ for $p=5$ and $q=-7$ (with intermediate steps)

Accepted Answer

$4\cdot-7-5=-28-5=-33$

Question 19

The zig-zag section on a vertical axis is called

Accepted Answer

tear line

Answer

substitution

Answer

crossing line

Answer

smooth curve

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