Addition and Subtraction
320+98
*100 more points if you use mental math
418
5 * 3
15
18 divided by 2
9
3 tens 4 ones and 6 hundreds
634
Kitty has 123 crayons in her tool box. Her mom buys a box of 25 crayons. How many crayons does Kitty have now?
147 crayons
320-98
*100 more points if you use mental math
222
_____ * 6 = 12
2
27 divided by 3
9
10 tens and 5 ones
105
Olivia had a sticker collection that had 300 stickers. She gave her brother Christopher 79 stickers. How many stickers was she left with?
221 stickers
30 less than 200
*100 more points if you use mental math
170
3 * 11
33
33 divided by 3
11
9 hundred 5 tens and 14 ones
964
Evan started with 25 cm of ribbon. He needs 55 cm of ribbon to make bow ties. How much ribbon should he buy?
30 cm of ribbon
526+281
*100 more points if you use mental math
807
_____ * 2= 36
18
100 dived by 50
2
2 hundreds 13 tens 11 ones
341
Ellie is making cookies for her class. She has 17 classmates not including herself. She wants to make sure each student has 3 cookies each. How many cookies does she need to bake,
54 cookies
300-129
*100 more points if you use mental math
171
33 * 3
99
200 dived by 2
100
9 hundred 11 tens 15 ones
1125
Will has 27 books. He wants to put them on 3 shelves. He wants to put the same amount of books on each shelf. How many books will he put on each self.
9 books