Integers

Adding and Subtracting Integers

100

15+24

39

200

What is the rule for adding and subtracting integers?

Same signs add and keep, different signs subtract, keep the sign of the further number from zero.

300

50-25

25

400

78+87

165

500

80-35

45

Adding and Subtracting Negative and Positive Integers At The Same Time

100

-5-(-9)=

4

200

What is the rule for adding and subtracting negative integers?

Subtraction you change the minus to a plus and change the sign of the next number then follow the addition rules (same signs add and keep, different signs subtract, keep the sign of the further number then you'll be exact)

300

89-(-34)=

123

400

123-(-75)=

198

500

276+(-35)=

241

Multiplying and Dividing Integers

100

7 x 5=

35

200

What is the rule for multiplying and dividing integers?

Multiply or divide the numbers then if they have the same sign the answer is positive, if they have different signs the answer is negative. 

300

54/9=

6

400

50 x 20=

1000

500

81/9=

9

Multiplying and Dividing Negative Integers

100

-10 x (-5)=

50

200

What is the rule for multiplying and dividing negative integers?

multiply or divide and if same signs the answer is positive. If different signs answer is negative.

300

-20/(-5)=

4

400

-5x(-7)=

35

500

-12x(-6)=

72

Multiplying and Dividing Negative and Positive Integers at The Same Time

100

-7x3=

-21

200

What is the rule for multiplying and dividing negative and positive integers at the same time?

The product (x) or quotient (division) of two positive integers or two negative integers is positive. When the signs are different the answer is negative. When the signs are the same the answer is positive.

300

-10/5

-2

400

-30x20=

-600

500

-40/20=

-2