50p to whoever : )
rewrite the following expressions using the associative property. do not evaluate the expressions; in other words, don't come up with the final answer, but just rewrite them.
1. (1 + 2) + 3
2. 1 + (2 + 3)
3. 2 • (3 • 4)
4. (2 • 3) • 4
rewrite the following expressions using the commutative property. do not evaluate the expressions; in other words, don't come up with the final answer, but just rewrite them.
5. 2 • 3
6. 1 + 2
7. 2(3 + x)
8. 3 + 4x
rewrite the following expressions using the distributive property. evaluate the expression to their simplest form after distributing.
9. 4(3 + 2)
10. –2(5 + x)
11. 3(10 – y)
12. –3(4 – x)
identify which property is true in each of the following problems.
13. why is it true that 3 + 2 = 2 + 3?
14. why is it true that x • y = y • x?
15. why is it true that –4(3 – y) = –12 + 4y?
16. why is it true that (2 + x) + y = 2 + (x + y)?
rewrite the following subtraction problems as addition problems. don't solve the problems; just rewrite them.
17. 4 – 3
18. 4 – (–3)
19. –4 – 3
20. –4 – (–3)