4-8-22 Math (+, -, x, / Rules; Order of Operations)

Which of the following equations describes the relationship between a and b?

• a + 13 = b

• a - 13 = b

• a x 14 = b

• a + 14 = b

Which pair of numbers completes the table?

• 41, 46

• 42, 46

• 42, 45

• 44, 48

What is the function ("rule") of the table?

• x - 10 = y

• x - 14 = y

• x ÷ 3 = y

• x + 3 = y

Which equation matches the table?

• x + 5 = y

• x - 5 = y

• x - 15 = y

• x = y - 5

If my function ("rule") is "Subtract 5", and the INPUT is 14,

what is the OUTPUT?

• 9
• 19
• 21
• 1

If my function ("rule") is MULTIPLY BY 4, and the INPUT is 5,

what is the OUTPUT?

• 45
• 1

• 9
• 20

What is the rule?

(HINT: Be careful with that first 0, 0!)

• Divide by 4

• Add 4
• Multiply by 3
• Multiply by 0

What rule would explain this INPUT OUTPUT table?

• x + 3 = 8

• x - 3 = y

• x / 3 = y

  ("/" means divide)

• y = x - 3

What rule would explain this INPUT OUTPUT table and what two numbers are missing?

• Input + 8 = Output

  10, 18

• Input + 21 = Output

  23, 31

• Input x 8 = Output

  16, 80

• Input x 6 = Output

  12, 60

Which of the following equations describes the relationship between e and f ?

• e + 22 = f

• e + 12 = f

• e x 12 = f

• e + 33 = f