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095_G6U24_G6U12–‡» ¿º 2011.3.23 11:8 AM ˘ ` 72
Activity 1 Equations
Learn about equations.
An equation is a statement that shows that two quantities are equal
by using an equal sign.
4 2 = 6, 21 7 = 3, 10 x = 5, and a 8 = 32 are examples of
equations.
1 . Use the variable a to write an equation for each word sentence.
a. 10 more than a number is 20. b. 3 times a number is 24.
a 10 = 20 3a = 24
c. 24 more than a number is 32. d. 4 times a number is 56.
e. 13 less than a number is 2. f. A number divided by 36 is 4.
2 . Write a word sentence for each equation.
a. a 5 = 12 b. x 15 = 8
5 more than a number is 12.
c. 6 b = 48 d. y 3 = 4
e. y 12 = 24 f. 36 z = 12
72
Activity 1 Equations
Learn about equations.
An equation is a statement that shows that two quantities are equal
by using an equal sign.
4 2 = 6, 21 7 = 3, 10 x = 5, and a 8 = 32 are examples of
equations.
1 . Use the variable a to write an equation for each word sentence.
a. 10 more than a number is 20. b. 3 times a number is 24.
a 10 = 20 3a = 24
c. 24 more than a number is 32. d. 4 times a number is 56.
e. 13 less than a number is 2. f. A number divided by 36 is 4.
2 . Write a word sentence for each equation.
a. a 5 = 12 b. x 15 = 8
5 more than a number is 12.
c. 6 b = 48 d. y 3 = 4
e. y 12 = 24 f. 36 z = 12
72
