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TO MULTIPLY BY _______ – just add the number to itself. (2, 3, 5, 9, 10)
2
TO MULTIPLY BY _______ – the digits of the answer add up to 3, 6, 9. (2, 3, 5, 9, 10)
3
TO MULTIPLY BY 5 – by an ___________, get the tens digit by dividing the number by 2. The ones digit is 0. (EVEN NUMBER, ODD NUMBER)
EVEN NUMBER
TO MULTIPLY BY 5 – by an ________, subtract 1 from the number. Get the tens digit by dividing the answer by 2. The ones digit is 5. (EVEN NUMBER, ODD NUMBER)
ODD NUMBER
TO MULTIPLY BY _______ – the tens digit is one less than the original number. To get the ones digit, subtract the tens digit from 9. The tens digit plus the ones digit equals 9. (2, 3, 5, 9, 10)
9
TO MULTIPLY BY ________ – just move each digit once to the left. Fill in the last place with a 0.(2, 3, 5, 9, 10)
10
IT is the inverse operation of multiplication. (1 Word, starts with letter D)
DIVISION
The answer in division is called. (1 Word, starts with letter Q)
QUOTIENT
What is the dividend? 24 / 6 = 4
24
What is the divisor? 42 / 6 = 7
6
What is the quotient? 48 / 6 = 8
8
4200 / 200 = ?
21
400 / 4 = ?
100
360 / 60 = ?
6
350 / 70 = ?
5
600 / 300 = ?
2
