Vocabulary
The NUMBER that is DIVIDED into equal parts.
1,575 divide 5 = 315
The DIVIDEND is 1,575.
Name the MISSING member of the Multiplication/Division FACT FAMILY.
6, 8, and _____
48 is a member because 6 x 8 = 48.
Name the UNKNOWN number.
30 divide x = 6
x =5
5 times 6 = 30
What is a letter that is used to represent an unknown number?
VARIABLE
54 divide 6 = 9
54 divide 9 = 6
9 times 3 = 27
6 times 9 = 54
9 times 3 = 27
The NUMBER that DIVIDES the DIVIDEND.
1,575 divide 5 = 315
The DIVISOR is 5 in this example.
Which of these GROUPS of NUMBERS makes a FACT FAMILY with Multiplication and Division?
A) 3, 3, 6
B) 7, 14, 21
C) 5, 12, 60
5, 12, and 60 make a FACT FAMILY.
60 divide 5 = 12
60 divide 12 = 5
12 times 5 = 60
5 times 12 = 60
Name the UNKNOWN number.
90 divide y = 5
y = 18
90 divide 5 = 18
2 times m = 26
m = 13 because 26 divide 2 = 13.
50 divide 25 = 2
50 divide 5 = 10
2 times 25 = 50
25 times 2 = 50
50 divide 5 = 10
The RESULT of dividing numbers.
1,575 divide 5 = 315
The QUOTIENT is 315 in this equation.
Name the MISSING member of the Multiplication/Division FACT FAMILY.
2, ___, and 10
5 is a member because 10 divided by 2 is 5.
Name the UNKNOWN number.
t divide 4 = 9
t = 36
9 times 4 = 36
When you write a VARIABLE, use what kind of letter?
Use a lowercase letter.
x, y, z, a, b, c
6 times 11 = 66
11 times 6 = 66
66 divide 11 = 6
60 divide 6 = 10
60 divide 10 = 6
The NUMBER that is LEFT after one whole number is divided by another whole number.
1,579 divide 5 = 315 R 4
The REMAINDER is 4 in this example.
Name the MISSING member of the Multiplication/Division FACT FAMILY.
5, 9, and ____
The missing member is 45.
5 x 9 = 45
Name the UNKNOWN number.
12 times p = 120
p = 10
120 divide 12 = 10
Would you use the letter "o" as a variable? Why not?
The letter "o" looks like a zero. Don't use "o" as a variable.
7 times 50 = 350
50 times 7 = 350
350 divide 5 = 70
350 divide 7 = 50
350 divide 5 = 70
A group of RELATED FACTS that use the SAME numbers.
28 divide 4 = 7
7 times 4 = 28
28 divide 7 = 4
4 times 7 = 28
4,7, and 28 make a FACT FAMILY.
Name the MISSING member of the Multiplication/Division FACT FAMILY.
7, ____, and 63
9 is a FAMILY MEMBER.
63 divide 9 = 7
Name the UNKNOWN number.
25 times k = 150
150 divide 25 = 6
k = 6
x4 = 10,000
What is x?
x = 10
10 x 10 x 10 x 10
50 times 300 = 15,000
500 times 30 = 15,000
15,000 divide 30 = 500
15,000 divide 500 = 30
50 times 300 = 15,000