Report

© 2007 M. Tallman Addend- a number that is added to another. 3+4=7 addend addend © 2007 M. Tallman Sum- the answer to an addition problem. 3+4=7 addend addend © 2007 M. Tallman sum Sum- the answer to an addition problem. 7 sum Addend- a number that is added to another. 7 sum 3 4 addend addend © 2007 M. Tallman 6+2=8 2+6=8 8–2=6 8–6=2 © 2007 M. Tallman 3+6=9 6+3=9 9–6=3 9–3=6 © 2007 M. Tallman 5+2=7 2+5=7 7–2=5 7–5=2 © 2007 M. Tallman 9 + 2 = 11 2 + 9 = 11 11 – 2 = 9 11 – 9 = 2 © 2007 M. Tallman Use what you know about fact families to solve for the unknown variable. 7+8=k h + 7 = 15 15 – 7 = h 15 - 8 = s © 2007 M. Tallman k = 15 h=8 h=8 s=7 Use what you know about fact families to solve for the unknown variable. 9+3=y x + 9 = 12 12 – x = 9 12 - 3 = v © 2007 M. Tallman y = 12 x=3 x=3 v=9 Use what you know about fact families to solve for the unknown variable. 8+9=a 9 + b = 17 17 – 8 = c a-9=8 © 2007 M. Tallman a = 17 b=8 c=9 a = 17 Find the sum or difference, then write the related number sentences. 5 + 7 = 12 7 + 5 = 12 12 – 7 = 5 12 - 5 = 7 © 2007 M. Tallman Find the sum or difference, then write the related number sentences. 24 - 7 = 17 24 - 17 = 7 17 + 7 = 24 7 + 17 = 24 © 2007 M. Tallman Find the sum or difference, then write the related number sentences. 36 - 25 = 11 36 - 11 = 25 11 + 25 = 36 25 + 11 = 36 © 2007 M. Tallman Find the sum or difference, then write the related number sentences. 9 + 9 = 18 18 – 9 = 9 © 2007 M. Tallman Write the fact family for the set of numbers. 4, 5, 9 4+5=9 5+4=9 9-4=5 9-5=4 © 2007 M. Tallman Write the fact family for the set of numbers. 12, 24, 36 12 + 24 = 36 24 + 12 = 36 36 - 12 = 24 36 - 24 = 12 © 2007 M. Tallman Write the fact family for the set of numbers. 26, 17, 43 26 + 17 = 43 17 + 26 = 43 43 - 17 = 26 43 - 26 = 17 © 2007 M. Tallman Write the fact family for the set of numbers. 16, 8, 8 16 - 8 = 8 8 + 8 = 16 © 2007 M. Tallman