Add It Up
1 + 1 + 1 + 1 + 1 + 1
6
Half of half of 4
1
10 Groups of 3
30
2 - 1 - 1
-1
Max eats a tray of 12 cookies! Sofia eats half a tray! How many cookies were eaten? ..Both toss their cookies..
18
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9
45
Half of half of 8
2
20 Groups of 4
80
4 - 3 - 1 - 0
0
Sofia bakes 14 cookies. Max bakes 22 cookies but half of his tray burns! How many cookies were baked?
25
3 + 30 + 300 + 3000
3333
Half of half of 12
3
5 Groups of 11
55
6 - 15
-9
Max and Sofia bake 12 cookies each on their own tray. Christa eats 4 cookies from Max's tray when he is not looking! Bruno, their scruffy dog, eats half of what is left of Max's tray! How many cookies are left in total?
16
14 + 34 + 54
102
4
3 Groups of 333
999
9 - 8 - 7 - 6 - 5 - 4 - 3 - 2 - 1
-27
Gabby loves chocolate chips! She has a full bag of 400 chocolate chips and another similar bag but it's already mysteriously half empty! If Gabby dosn't eat any more of the chocolate chips and puts 100 chips on each of her cookies, how many cookies will Gabby be able to bake?
6
5 + (-5) + 5 + (-5)
0
Half of half of 20
5
80 Groups of 7
560
15 - 3 -1 - 19 - 7
-45
What is math?
How numbers and related
(by their properties and operations and with shapes in space and their structure and measurement )