Jr.5 U2 & U3

The mathematical sentence 27 + 4.6 = m represents _____

• a variable
• an equation
• an expression
• neither

7.35 + 2.65 = 10 represents _____

• an equation
• an expression
• a variable
• otherwise

Which of the following is an equation?

• 1.8 + m
• m + 2.4 + 2
• m + 2 = 7

Which of the following is an expression?

• x + 0.8 - 1.6
• 3.25 + y = 5.55
• 2.36 - 1.5 = m
• Twice the number 6

In 35.4 + x = 72, the variable is _____

• 37
• x
• 35
• 72

If x + 5.8 = 7.8, then x = _____

• 7.8
• 5.8
• 2
• 12.8

The value of variable k in the equation 7.5 = k + 5 is _____

• 25
• 2.5
• 0.25
• 12.5

The value of the variable x in the equation x - 3.5 = 0.4 is _____

• 3.009
• 3.05
• 3.09
• 3.9

The number 13 has _____ Factor(s).

• 1
• 2
• 3
• 4

The smallest even prime number is _____

• 2
• 3
• 4
• 6