© 2007 m. tallman. addend- a number that is added to another. = 7 3 4 + addend
TRANSCRIPT
© 2007 M. Tallman
© 2007 M. Tallman
Addend- a number that is added to another.
= 73 4+adden
dadden
d
© 2007 M. Tallman
Sum- the answer to an addition problem.
73 4 =+sumadden
dadden
d
Sum- the answer to an addition problem.
7 sum
Addend- a number that is added to another.
© 2007 M. Tallman
7
3 4
sum
addend
addend
© 2007 M. Tallman
8 – 6 = 2
8 – 2 = 6
2 + 6 = 8
6 + 2 = 8
© 2007 M. Tallman
9 – 3 = 6
9 – 6 = 3
6 + 3 = 9
3 + 6 = 9
© 2007 M. Tallman
7 – 5 = 2
7 – 2 = 5
2 + 5 = 7
5 + 2 = 7
© 2007 M. Tallman
11 – 9 = 2
11 – 2 = 9
2 + 9 = 11
9 + 2 = 11
© 2007 M. Tallman
7 + 8 = k k = 15h = 8
s = 7
h + 7 = 1515 – 7 = h15 - 8 = s
h = 8
Use what you know about fact families to solve for the unknown
variable.
© 2007 M. Tallman
9 + 3 = y y = 12x = 3
v = 9
x + 9 = 1212 – x = 912 - 3 = v
x = 3
Use what you know about fact families to solve for the unknown
variable.
© 2007 M. Tallman
8 + 9 = a a = 17b = 8
a = 17
9 + b = 1717 – 8 = ca - 9 = 8
c = 9
Use what you know about fact families to solve for the unknown
variable.
© 2007 M. Tallman
Find the sum or difference, then write the related number
sentences.
5 + 7 =127 + 5 = 1212 – 7 = 512 - 5 = 7
© 2007 M. Tallman
Find the sum or difference, then write the related number
sentences.
24 - 7 =1724 - 17 = 717 + 7 = 247 + 17 = 24
© 2007 M. Tallman
Find the sum or difference, then write the related number
sentences.
36 - 25 =1136 - 11 = 2511 + 25 = 3625 + 11 = 36
© 2007 M. Tallman
Find the sum or difference, then write the related number
sentences.
9 + 9 =1818 – 9 = 9
© 2007 M. Tallman
Write the fact family for the set of numbers.
4, 5, 9
4 + 5 = 95 + 4 = 99 - 4 = 59 - 5 = 4
© 2007 M. Tallman
Write the fact family for the set of numbers.
12, 24, 36
12 + 24 = 3624 + 12 = 3636 - 12 = 2436 - 24 = 12
© 2007 M. Tallman
Write the fact family for the set of numbers.
26, 17, 43
26 + 17 = 4317 + 26 = 4343 - 17 = 2643 - 26 = 17
© 2007 M. Tallman
Write the fact family for the set of numbers.
16, 8, 8
16 - 8 = 88 + 8 = 16