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1. Which equation shows the identity property of addition? 8 + 7 = 7 + 8
4 = 1 + 2 + 3
0 + 3 = 3 6 + 7 = 7 + 6
Answer: 0 + 3 = 3According to the identity property of addition, a + 0 = a. Adding zero does not change the sum. 2. Which equation shows the commutative property of addition? 1 + 0 = 1
7 = 4 + 3 + 1
9 + (4 + 5) = (9 + 4) + 5
5 + 6 = 6 +5
Answer: 5 + 6 = 6 +5According to the commutative property of addition, a + b = b + a. Adding numbers in any order gives the same sum. 3. Which equation shows the associative property of addition? 6 + 7 = 8 + 9
1 + (2 + 3) = (1 + 2) + 3 6 + 0 = 6
4 + 8 = 8 + 4
Answer: 1 + (2 + 3) = (1 + 2) + 3According to the associative property of addition, a + (b + c) = (a + b) + c. The grouping of the numbers does not change the sum.
4. Which property of addition is represented by the following equation? t + 0 = t associative
commutative
identity
Answer: identityAccording to the identity property of addition, a + 0 = a. Adding zero does not change the sum. 5. Which property of addition is represented by the following equation? u + v = v + u associative
commutative identity
Answer: commutativeAccording to the commutative property of addition, a + b = b + a. Adding numbers in any order gives the same sum. 6. Which property of addition is represented by the following equation? a + (b + c)=(a + b) + c associative commutative
identity
Answer: associativeAccording to the associative property of addition, a + (b. + c) = (a + b) + c. The grouping of the numbers does not change the sum. 7. Which equation shows the identity property of addition? a + b = b + c
i + 0 = i a + (b + c) = (a + b) + c
r + s = s + t
Answer: i + 0 = iAccording to the identity property of addition, a + 0 = a. Adding zero does not change the sum. 8. Which equation shows the commutative property of addition? p + q = q + p 0 + k = k
p + (q + r) = (p + q) + r
h = h + 0
Answer: p + q = q + pAccording to the commutative property of addition, a + b = b + a. Adding numbers in any order gives the same sum. 9. Which equation shows the associative property of addition? k = 0 + k
i + j = j + i
k + l = l + m
m + (n + o) = (m + n) + o
Answer: m + (n + o) = (m + n) + oAccording to the associative property of addition, a + (b. + c) = (a + b) + c. The grouping of the numbers does not change the sum. 10. Which property of addition is represented by the following equation? 7 + (3 + 4) = (7 + 3) + 4 associative commutative
identity
Answer: associativeAccording to the associative property of addition, a + (b. + c) = (a + b) + c. The grouping of the numbers does not change the sum. 11. Which property of addition is represented by the following equation? 3 + 0 = 3 associative
commutative
identity
Answer: identityAccording to the identity property of addition, a + 0 = a. Adding zero does not change the sum. 12. Which property of addition is represented by the following equation? 7 + 2 = 2 + 7 associative
commutative identity
Answer: commutativeAccording to the commutative property of addition, a + b = b + a. Adding numbers in any order gives the same sum. 13. Which equation shows the identity property of addition? p + q = q + p
u + (v + w) = (u + v) + w
j + 0 = j m − 0 = m
Answer: j + 0 = jAccording to the identity property of addition, a + 0 = a. Adding zero does not change the sum. 14. Which property of addition is represented by the following equation? p + q = q + p associative
commutative identity
Answer: commutativeAccording to the commutative property of addition, a + b = b + a. Adding numbers in any order gives the same sum. 15. Which equation shows the associative property of addition? 5 + 0 = 5
9 + (1 + 4) = (9 + 1) + 4 6 + 2 = 2 + 6
5 = 2 + 3 + 4
Answer: 9 + (1 + 4) = (9 + 1) + 4According to the associative property of addition, a + (b. + c) = (a + b) + c. The grouping of the numbers does not change the sum. 16. What is the missing number? 234 + 673 = + 234 234
673 907
0
Answer: 673According to the commutative property of addition, a + b = b + a. Adding numbers in any order gives the same sum. 17. What is the missing number? + 4675 = 4675 4675
-1
5784
0
Answer: 0According to the identity property of addition, a + 0 = a. Adding zero does not change the sum. 18. What is the missing number? 5745 + (3856 + 7464) = ( + 3856) + 7464 5745 7464
0
9601
Answer: 5745According to the associative property of addition, a + (b. + c) = (a + b) + c. The grouping of the numbers does not change the sum. 19. What is the missing number? 894 + = 894 1788
-1
849
0
Answer: 0According to the identity property of addition, a + 0 = a. Adding zero does not change the sum. 20. What is the missing number? 2549 + 4726 = 4726 + 4726
7275
0
2549
Answer: 2549According to the commutative property of addition, a + b = b + a. Adding numbers in any order gives the same sum. 21. What is the missing number? 123 + (456 + 789) = ( + 456) + 789 456
123 0
789
Answer: 123According to the associative property of addition, a + (b. + c) = (a + b) + c. The grouping of the numbers does not change the sum.
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