Answer:
?=5
Explanation:
Multiples of 9:
10x9=90
9x9=81
8x9=72
7x9=63
6x9=54
5x9=45
4x9=36
3x9=27
2x9=18
1x9=9
0x9=0
Memorize the multiplication table. It is useful.
The correct answer is "5"
5 times 9 equals 45.
5 x 9 = 45
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