9G (1.7) Operations with Negative Numbers

1.7) Operations with Negative Numbers

When you do Addition, Subtraction, Multiplication and Division with negative numbers, it can be very tricky.

Luckily, you can always use your calculator to give you the answer.

Multiple Choice

$$13+8=\ ?$$

• 21

• 20

• 138

• 5

• -21

Multiple Choice

$$-1\ +\ 1=\ ?$$

• = 0

• = 2

• = -2

• = 1

• = -1

​You can enter a Negative Number into your calculator by pressing the (-) button before entering your number.

The (-) button is in the bottom row of buttons, second from the right, next to the ENTER button

Multiple Choice

$$-2\ +\ 1=\ ?$$

• = 0

• = 2

• = -2

• = 1

• = -1

Multiple Choice

$$-1\ +\ 2=\ ?$$

• = 0

• = 2

• = -2

• = 1

• = -1

Multiple Choice

$$\ 2-1=\ ?$$

• = 0

• = 2

• = -2

• = 1

• = -1

Multiple Choice

$$-3\ +\ 1=\ ?$$

• = 0

• = 2

• = -2

• = 1

• = -1

Multiple Choice

$$1-3=\ ?$$

• = 0

• = 2

• = -2

• = 1

• = -1

Multiple Choice

$$-7\ +10=\ ?$$

• = 17

• = 3

• = -17

• = -3

• = 7

Multiple Choice

$$10-7\ =\ ?$$

• = 17

• = 3

• = -17

• = -3

• = 7

Multiple Choice

$$-3\ +14\ =\ ?$$

• = 17

• = 11

• = -11

• = -17

• = 9

Multiple Choice

$$14-3\ =\ ?$$

• = 17

• = 11

• = -11

• = -17

• = 9

Multiple Choice

$$3-3\ =?$$

• 1
• -6

• 6
• 0
• -3

Multiple Choice

$$-3+3\ =?$$

• 1
• -6

• 6
• 0
• -3

Multiple Choice

$$-3+\left(-7\right)\ =\ ?$$

• = 10

• = -10

• = -4

• = 4

• = -73

Multiple Choice

$$\left(-3\right)+\left(-7\right)\ =\ ?$$

• = 10

• = -10

• = -4

• = 4

• = -73

Multiple Choice

$$3-7\ =\ ?$$

• = 10

• = -10

• = -4

• = 4

• = -73

Multiple Choice

$$\left(-3\right)+\left(-7\right)\ =\ ?$$

• = 10

• = -10

• = -4

• = 4

• = -73

Multiple Choice

$$-7+3=\ ?$$

• = 10

• = -10

• = -4

• = 4

• = -73

Multiple Choice

$$-7+7=\ ?$$

• = 3

• = -3

• = -14

• = 0

• = -77

Multiple Choice

$$-4+11\$$ is the same as:

• $$-11-4$$

• $$11-4$$

• $$4-11$$

• $$4+11$$

• $$-11+4$$

Multiple Choice

$$-13+2\$$ is the same as:

• $$-13-2$$

• $$13-2$$

• $$2-13$$

• $$2+13$$

• $$-13+2$$

Multiple Choice

$$-13-2\$$ is the same as:

• $$-2-13$$

• $$-2+13$$

• $$2-13$$

• $$2+13$$

• $$-13+2$$

Multiple Choice

$$-13+2\$$ is the same as:

• $$-13-2$$

• $$13-2$$

• $$2-13$$

• $$2+13$$

• $$-13+2$$

Multiple Choice

$$20-9\$$ is the same as:

• $$-9+20$$

• $$20+9$$

• $$9+20$$

• $$-9-20$$

• $$-20+9$$

Maybe that makes sense to you.
Multiplication and Division are harder to understand

Multiple Choice

$$4\cdot3\ =\ ?$$

• = 12

• = 43

• = 34

• = 7

• = -12

Multiple Choice

$$-1\cdot1\ =\ ?$$

• = -1

• = 1

• = -2

• = 2

• -11

Multiple Choice

$$-2\cdot2\ =\ ?$$

• -1
• 2
• -4
• 0
• 4

Multiple Choice

$$-3\cdot6\ =\ ?$$

• 0
• -12
• -18
• 36
• 18

Multiple Choice

$$-3\cdot-3$$

• 1
• 0
• -9
• 6
• 9

Multiple Choice

$$-1\cdot0\ =\ ?$$

• 1
• 10

• -1
• -10
• 0

Multiple Choice

$$2\left(4\right)\ =?$$

• 6
• 10
• 12
• 8
• 16

Multiple Choice

$$-2\left(4\right)\ =\ ?$$

• -6
• 2
• -8
• 0
• 16

Multiple Choice

$$6\left(-7\right)\ =\ ?$$

• 36
• -49
• -42
• 0
• 13

Multiple Choice

$$-7\left(-7\right)\ =\ ?$$

• -49
• 7
• 0
• 49
• 14

Multiple Choice

$$-1\left(20\right)\left(-2\right)\ =\ ?$$

• 0
• -20
• -40
• 40
• 80

Multiple Choice

$$-2\cdot-3\cdot-4\ =\ ?$$

• 0
• -12
• 12
• -24
• 6

Multiple Choice

$$3\cdot4\left(-4\right)\ =\ ?$$

• 0
• 16
• -12
• 144
• -48

Multiple Choice

$$-4\cdot4$$ is the same as:

• $$4\left(4\right)$$

• $$-4\left(-4\right)$$

• $$-4\cdot-4$$

• $$4\cdot-4$$

• $$4\cdot4$$

Multiple Choice

$$-5\cdot-3$$ is the same as:

• $$3\left(-5\right)$$

• $$3\cdot-5$$

• $$-3\cdot5$$

• $$5\left(3\right)$$

• $$-3\left(5\right)$$

Multiple Choice

$$6\cdot6$$ is the same as:

• $$-6\left(-6\right)$$

• $$6\cdot-6$$

• $$6\left(-6\right)$$

• $$9\cdot3$$

• $$8\cdot4$$

Multiple Choice

$$-8\left(3\right)$$ is the same a

• $$8\left(-3\right)$$

• $$-8\cdot-3$$

• $$8\cdot3$$

• $$8\left(3\right)$$

• $$-3\left(-8\right)$$

Multiple Choice

$$\frac{28}{7}=\ ?$$

• 4

• 7

• -4

• 28

• 5

Multiple Choice

$$\frac{-4}{2}\ =\ ?$$

• 2

• -2

• 4

• 1

• -8

Multiple Choice

$$-\frac{4}{2\ }=\ ?$$

• 4
• 0
• -1
• -2
• 2

Multiple Choice

$$-4\div2=\ ?$$

• 4
• 0
• -1
• -2
• 2

Multiple Choice

$$\frac{8}{-2}\ =\ ?$$

• -4
• 4
• 2
• 8

• -2

Multiple Choice

$$\frac{-9}{-3}\ =\ ?$$

• -3

• 3

• 9

• 4

• -4

Multiple Choice

$$\frac{-9}{9}\ =\ ?$$

• -1

• -0

• 9

• -9

• 0

Multiple Choice

$$-9\div9\ =\ ?$$

• -1

• -0

• 9

• -9

• 0

Multiple Choice

$$-57\div3\ =\ ?$$

• -19

• 19

• 15

• -15

• -17

Multiple Choice

$$57\div-3\ =\ ?$$

• -19

• 19

• 15

• -15

• -17

Multiple Choice

$$-57\div-3\ =\ ?$$

• -19

• 19

• 15

• -15

• -17

Multiple Choice

$$\frac{-2}{4}$$ is the same as

• $$\frac{1}{-2}$$

• $$\frac{2}{4}$$

• $$\frac{1}{2}$$

• $$\frac{-4}{2}$$

• $$\frac{4}{-2}$$

Multiple Choice

$$-\frac{2}{4}$$ is the same as

• $$\frac{1}{-2}$$

• $$\frac{2}{4}$$

• $$\frac{1}{2}$$

• $$\frac{-4}{2}$$

• $$\frac{4}{-2}$$

Multiple Choice

$$-\frac{0}{4}$$ is the same as

• $$\frac{1}{-2}$$

• $$\frac{2}{4}$$

• $$\frac{1}{2}$$

• $$\frac{-4}{2}$$

• $$0$$

Multiple Choice

$$\frac{5}{-10}$$ is the same as

• $$\frac{1}{-2}$$

• $$\frac{-5}{-10}$$

• $$\frac{1}{2}$$

• $$\frac{5}{10}$$

• $$-\frac{0}{10}$$

Multiple Choice

$$\frac{-20}{4}$$ is the same as

• $$-\frac{4}{20}$$

• $$-\frac{-4}{20}$$

• $$\frac{4}{20}$$

• $$\frac{4}{-20}$$

• $$-5$$

Multiple Choice

$$\frac{44}{-11}$$ is the same as

• $$-\frac{11}{44}$$

• $$\frac{-11}{44}$$

• $$\frac{11}{-44}$$

• $$\frac{11}{44}$$

• $$-4$$

Multiple Choice

$$44\div-11$$ is the same as

• $$-11\div44$$

• $$11\div44$$

• $$-11\div-44$$

• $$11\div-144$$

• $$-4$$