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12 questions
2 x (2x5)
20
15
18
21
7 + (4 + 2) = 13, so (7 + 4) + 2
10
12
13
14
What is the missing number?
4 + (____ + 5) = (4 + 7) + 5
4
5
16
7
What is the missing number?
5 × (__× 9) = (5 × 8) × 9
5
360
8
9
5 × (2 × 9) is also equal to:
5 x (2 - 9)
5 x (2 + 9)
(5 x 2) x 9
(5 x 2) + 9
Which one of the following illustrates the Associative Law of addition?
3 + ( 2 + 4) = (4 + 4) + 1
3 + (2 + 4) = (3 + 2) + 4
3 + (2 + 4) = (5 + 2) + 2
3 + (2 + 4) = (2 + 6) + 1
Which of the following illustrates the Associative Law of multiplication?
4 × (3 × 6) = (3 × 12) × 2
4 × (3 × 6) = (6 × 6) × 2
4 × (3 × 6) = (4 × 3) × 6
4 × (3 × 6) = (3 × 8) × 3
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