Which property of addition is stated by this equation? (a + b) + c = a + (b + c)

(a)  

If one addend is 7 and the sum is 21, what is the other addend?

(a)  

Find the value of each variable. 7 + x + 83 = 112

(a)  

Find the value of each variable. 96 - r = 27

(a)  

Find the value of each variable. 7k = 119

(a)  

Find the value of each variable. 127 + z = 300

(a)  

Find the value of each variable. m - 137 = 731

(a)  

Find the value of each variable. 25n = 400

(a)  

Find the value of each variable. 625 ÷ w = 25

(a)  

Find the value of each variable. x ÷ 60 = 700

(a)  

Evaluate each expression for a = 20 and b = 5: a ÷ b

(a)  

Evaluate each expression for a = 20 and b = 5: a - b

(a)  

Evaluate each expression for a = 20 and b = 5: ab

(a)  

Evaluate each expression for a = 20 and b = 5: a + b

(a)  

Simplify: 96 ÷ (16 ÷ 2)

(a)  

Simplify: (96 ÷ 16) ÷ 2

(a)  

$16.47 + $15 + 63¢

(a)  

$50.00 - ($6.48 + $31.75)

(a)  

47 × 39

(a)  

$8.79 × 80

(a)  

1100 - (374 - 87)

(a)  

(1100 - 374) - 87

(a)  

4736 + 271 + 9 + 88

(a)  

30,145 - 4299

(a)  

4740 ÷ 30

(a)  

$40.00 ÷ 32

(a)  

2104 ÷ 35

(a)  

$0.48 X 40

(a)