10. Sum: the answer to an addition problem + is the addition sign http://www.wpclipart.com/signs_symbol/assorted/assorted_3/addition_sign.png.html
11. If you have 2 balloons and you get 2 more how many balloons do you have? 2 + 2 = 4 http://www.volunteertoday.com/fedgovt.html Addition Sum
12. If you find one flower and already have one flower how many flowers do you have? 1 + 1 = ? A. 3 B. 0 C. 2 D. 1 http://www.flickr.com/photos/nevrlndtink/240980093/
13. Subtraction Subtraction: the removing of some objects from a group. The meaning of 5-3=2 is: three objects taken away from a group of five objects two objects remain.
14. Difference: is the answer to a subtraction problem also called the remainder. - is the subtraction sign http://manicmathmadness.blogspot.com/
15. If you had 4 pennies and you spend 3 how many pennies do you have left to spend? 4 – 3 =? A. 4 B. 2 C. 0 D. 1 http://www.de-fact-o.com/fact_read.php?id=61
16. You have 2 bouncy balls, but you lost 2, how many do you have left? A. 1 B. 3 C. 4 D. 2 http://www.galacticcircus.com.au/redemption.html