Addition
What is 28 + 8
36
56 - 30
26
John had 23 marbles and gave some to his friend George. He has 13 left. How many did he give George?
10
What does Partition mean?
To break up a number into parts.
An octogon has how many sides?
8
What is 68 + 75
143
106 - 94
12
Amanda has 56 ice blocks. She gave away half of them. How many does she have left?
28
What does ascending mean?
How many millilitres are there in a litre?
1000 millilitres
239 + 145
384
560 - 240
320
Joey has 300 cars. He sells half of them. And buys another 20. How many cars does he have altogether?
170
What does this symbol mean? >
Greater than
10 x 60
600
1156 + 2432 =
3588
369 - 123
246
Jen sells 58 cupcakes and has 13 left to sell. How many did she have to begin with?
71
What name is given to the combinations of ten?
Friends of ten
What is the next number. 1, 4, 8, 13, 19, __
26
14.78 + 12.01
26.79
24.98 - 10.60
14.38
Sam buys 3 pizzas. Each pizza is cut into 8 slices. If Sam has 3 pieces left, how much was eaten?
21
Addition is the opposite of subtraction. Each operation can undo the other one.
How many hours are in a week?
168