Pre-Algebra Study Guide 9.18.25

1. Adding and Subtracting Integers Rules Recap: - Same signs: Add and keep the sign. - Different signs: Subtract and keep the sign of the larger number. Examples: 1. -8 + 12 = ____

• 4

• -20

• -4

• -8

Tags

CCSS.7.NS.A.1C

1. Adding and Subtracting Integers Rules Recap: - Same signs: Add and keep the sign. - Different signs: Subtract and keep the sign of the larger number. Examples: 2. 15 - 23 = ____

• -8

• 8

• -38

• 38

Tags

CCSS.7.NS.A.1C

1. Adding and Subtracting Integers Rules Recap: - Same signs: Add and keep the sign. - Different signs: Subtract and keep the sign of the larger number. Examples: 3. -10 - (-4) = ____

• -6

• 6

• -14

• -4

Tags

CCSS.7.NS.A.1C

1. Adding and Subtracting Integers Rules Recap: - Same signs: Add and keep the sign. - Different signs: Subtract and keep the sign of the larger number. Practice: a) -7 + (-9) = ____

• -16

• 2

• -2

• 16

Tags

CCSS.7.NS.A.1C

1. Adding and Subtracting Integers Rules Recap: - Same signs: Add and keep the sign. - Different signs: Subtract and keep the sign of the larger number. Practice: b) 18 + (-25) = ____

• -7

• 7

• -43

• 43

Tags

CCSS.7.NS.A.1C

1. Adding and Subtracting Integers Rules Recap: - Same signs: Add and keep the sign. - Different signs: Subtract and keep the sign of the larger number. Practice: c) -20 - 15 = ____

• -35

• -5

• 5

• 35

Tags

CCSS.7.NS.A.1C

2. Multiplying Integers Rules Recap: - Same signs → Positive - Different signs → Negative Examples: 1. (-6) × (-2) = ____

• 12

• -12

• -4

• 6

Tags

CCSS.7.NS.A.2A

2. Multiplying Integers Rules Recap: - Same signs → Positive - Different signs → Negative Examples: 2. (12) × (-3) = ____

• -36

• 36

• -15

• 9

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

2. Multiplying Integers Rules Recap: - Same signs → Positive - Different signs → Negative Practice: a) (-9) × (-5) = ____

• 45

• -45

• 9

• -9

Tags

CCSS.7.NS.A.2A

2. Multiplying Integers Rules Recap: - Same signs → Positive - Different signs → Negative Practice: b) (-4) × (7) = ____

• -28

• 28

• -11

• 4

Tags

CCSS.7.NS.A.2A