Patterns
3, 6, 12, 24, ___, ___, ___
48, 96, 192
1/2 + 1/4
3/4
432 ÷ 6
72
I am a number. Subtract 7 from me and you get 15. What am I?
22
A library has 280 books. They are placed equally on 7 shelves. How many books are on each shelf?
40 books
5, 8, 11, 14, ___, ___, ___
Answer: 17, 20, 23
Explanation: Add 3 each time.
3/8 + 1/4
5/8
756 ÷ 9
84
I am a number. Add 8 to me and you get 23. What am I?
15
A teacher buys 48 markers. She gives 6 markers to each table. How many tables get markers?
8 tables
1, 4, 10, 19, 31, ___, ___, ___
Answer: 46, 64, 85
Explanation: Add numbers that increase by 3.
5/8 - 1/3
7/24
672 ÷ 12
56
I am a number. If you double me and add 6, you get 30. What am I?
12
A pizza has 16 slices. Four friends share it equally. How many slices does each friend get?
4 slices
2, 5, 11, 23, ___, ___, ___
47, 95, 191
Explanation: Multiply by 2, then add 1.
A recipe calls for 3/4 cup of flour. Mia already added 2/5 cup. How much more flour does she need to add
Answer: 7/20 cup
Work:
3/4 - 2/5
= 15/20 - 8/20
= 7/20
432 ÷ 6
72
I am a two-digit number. My digits add to 10, and my tens digit is 2 more than my ones digit. What am I?
64
A box contains 96 crayons. If each pack holds 8 crayons, how many packs can be made?
12 packs
3, 8, 18, 38, ___, ___, ___
Answer: 78, 158, 318
Explanation: Multiply by 2, then add 2.
Sarah ate 3/8 of a pizza for lunch and 1/4 of the same pizza for dinner. How much pizza did she eat altogether?
Answer: 5/8
Work:
3/8 + 1/4
= 3/8 + 2/8
= 5/8
984 ÷ 6
164
I am a number. Triple me and add 4 to get 25. What am I?
7
A farmer has 8 rows of corn with 35 plants in each row. How many corn plants are there altogether?
280 corn plants