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### How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

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### 60 Cards in this Set

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• Back
• 3rd side (hint)
 1 x 1 1 Rule of 1's 2 x 1 2 Rule of 1's 3 x 1 3 Rule of 1's 4 x 1 4 Rule of 1's 5 x 1 5 Rule of 1's
6 x 1 6 Rule of 1's 7 x 1 7 Rule of 1's 8 x 1 8 Rule of 1's 9 x 1 9 Rule of 1's 10 x 1 10 Rule of 1's 11 x 1 11 Rule of 1's 12 x 1 12 Rule of 1's 1 x 2 2 Rule of 2's - any number times two is the number plus itself: (1 + 1 = 2) 2 x 2 4 Rule of 2's - any number times two is the number plus itself: (2 + 2 = 4) 3 x 2 6 Rule of 2's - any number times two is the number plus itself: (3 + 3 = 6) 4 x 2 8 Rule of 2's - any number times two is the number plus itself: (4 + 4 = 8) 5 x 2 10 Rule of 2's - any number times two is the number plus itself: (5 + 5 = 10) 6 x 2 12 Rule of 2's - any number times two is the number plus itself: (6 + 6 = 12) 7 x 2 14 Rule of 2's - any number times two is the number plus itself: (7 + 7 = 14) 8 x 2 16 Rule of 2's - any number times two is the number plus itself: (8 + 8 = 16) 9 x 2 18 Rule of 2's - any number times two is the number plus itself: (9 + 9 = 18) 10 x 2 20 Rule of 2's - any number times two is the number plus itself: (10 + 10 = 20) 11 x 2 22 Rule of 2's - any number times two is the number plus itself: (11 + 11 = 22) 1 x 10 10 Rule of 10's - any number times 10 is the number with a zero at the end 1 x 10 = 20 2 x 10 20 Rule of 10's - any number times 10 is the number with a zero at the end 1 x 10 = 20 3 x 10 30 Rule of 10's - any number times 10 is the number with a zero at the end 1 x 10 = 20 4 x 10 40 Rule of 10's - any number times 10 is the number with a zero at the end 1 x 10 = 20 5 x 10 50 Rule of 10's - any number times 10 is the number with a zero at the end 1 x 10 = 20 6 x 10 60 Rule of 10's - any number times 10 is the number with a zero at the end 1 x 10 = 20 7 x 10 70 Rule of 10's - any number times 10 is the number with a zero at the end 1 x 10 = 20 8 x 10 80 Rule of 10's - any number times 10 is the number with a zero at the end 1 x 10 = 20 9 x 10 90 Rule of 10's - any number times 10 is the number with a zero at the end 1 x 10 = 20 10 x 10 100 Rule of 10's - any number times 10 is the number with a zero at the end 1 x 10 = 20 1 x 11 11 Rule of 11's - any number times 11 is the number twice 2 x 11 22 Rule of 11's - any number times 11 is the number twice 3 x 11 33 Rule of 11's - any number times 11 is the number twice 4 x 11 44 Rule of 11's - any number times 11 is the number twice 5 x 11 55 Rule of 11's - any number times 11 is the number twice 6 x 11 66 Rule of 11's - any number times 11 is the number twice 7 x 11 77 Rule of 11's - any number times 11 is the number twice 8 x 11 88 Rule of 11's - any number times 11 is the number twice 9 x 11 99 Rule of 11's - any number times 11 is the number twice 5 x 5 25 Poem - 5 x 5 = 25 6 x 6 = 36 6 x 8 = 48 6 x 6 36 Poem - 5 x 5 = 25 6 x 6 = 36 6 x 8 = 48 6 x 8 48 Poem - 5 x 5 = 25 6 x 6 = 36 6 x 8 = 48 3 x 3 9 Fact 1: 3 x 3 = 9 4 x 4 16 Fact 2: 4 x 4 = 16 12 x 12 144 Fact 3: 12 x 12 = 144 Also known as a gross. A gross is a dozen, dozen 1 x 5 5 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will end in a 5 2 x 5 10 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will 3 x 5 15 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will 4 x 5 20 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will 5 x 5 25 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will 6 x 5 30 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will 7 x 5 35 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will 8 x 5 40 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will 9 x 5 45 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will 10 x 5 50 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will 11 x 5 55 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will 12 x 5 60 Rule of 5's Any even number times 5 will end in zero. Any odd number times 5 will