Question

Fans & medal!

Answer 1

1. 4 • 7 = 7 • 4

Commutative Property of Addition
Associative Property of Addition
Commutative Property of Multiplication
Associative Property of Multiplication

2. 6 + (8 + 3) = (6 + 8) + 3

Commutative Property of Addition
Associative Property of Addition
Commutative Property of Multiplication
Associative Property of Multiplication

3. Choose whether the equation is true, false, or an open sentence.

9 = 5 + 4
open sentence
true
false

4. Is 8 a solution of the following equation?

c = 2c – 4

yes
no

5. Write an equation for the problem below. Is the given value a solution?

A farmer sees 56 of his cows out of the barn. He knows that he has 83 cows all together. Let c represent the number of cows still in the barn. Could c = 33? (1 point)
56 + 83 = c; no
56 + c = 83; no
83 + c = 56; no
c + 33 = 56; yes

Answer 2

1. Commutative of Multiplication
2. Associative of Addition
3. true
4. 56 + c = 83; no