fraction
7 and 1/4 - 3 and 5/8
3 5/8
I am a number. Double me, then add 9. The answer is 31. What am I?
11
Emma had $85.75. She bought a backpack for $32.80, a lunchbox for $14.95, and 3 notebooks that cost $4.25 each. How much money does she have left?
$25.25
3,648 ÷ 12
304
2, 5, 11, 23, 47, ___, ___, ___
Answer: 95, 191, 383
Rule: Multiply by 2, then add 1.
3 and 1/2 + 2 and 3/4
6 1/4
I am a number. Triple me, then subtract 6. The answer is 39. What am I?
15
A school bought 18 boxes of pencils. Each box held 24 pencils. The school gave 167 pencils to students on the first day. How many pencils are left?
265
4,957 ÷ 16
309 R13
6, 11, 21, 41, 81, ___, ___, ___
Answer: 161, 321, 641
Rule: Multiply by 2, then subtract 1.
A recipe needs 5 1/2 cups of flour. Emma has already added 2 3/4 cups. She then adds another 1 1/2 cups. How much more flour does she still need?
1 and 1/4 cups
I am a two-digit number. My digits add to 10, and my tens digit is 2 more than my ones digit. What number am I?
64
A farmer collected 576 eggs. He packed them into cartons that hold 12 eggs each. After selling 35 cartons, how many eggs does he have left?
156
6,384 ÷ 24
266
3, 4, 8, 9, 18, 19, ___, ___, ___
Answer: 38, 39, 78
Rule: Alternate between +1 and ×2.
A ribbon is 12 3/4 feet long. Mia cuts off 3 1/2 feet for one project and 2 3/4 feet for another. She then uses 1 1/4 feet to wrap a gift. How much ribbon is left?
5 and 1/4
I am an even number. If you divide me by 4, the answer is 13. What number am I?
52
A pizza restaurant made 32 pizzas. Each pizza was cut into 8 slices. During lunch, 173 slices were sold. How many whole pizzas' worth of slices were left?
Answer: 83 slices left (10 whole pizzas and 3 slices)
7,529 ÷ 18
418 R5
8, 11, 17, 26, 38, ___, ___, ___
Answer: 53, 71, 92
Rule: Add consecutive multiples of 3:
+3, +6, +9, +12, +15, +18, +21
A water jug holds 6 liters. Liam drinks 1 3/4 liters, his sister drinks 1 1/2 liters, and their dad drinks 3/4 liter. How much water is left in the jug?
2 liters
I am a number. Add 15 to me, then divide by 5. The answer is 9. What number am I?
30
A zoo sold 248 adult tickets for $18 each and 176 child tickets for $12 each. How much money did the zoo collect from ticket sales?
Answer: $6,576
9,846 ÷ 27
364 R18
2, 6, 7, 21, 22, 66, ___, ___, ___
Answer: 67, 201, 202
Rule: Alternate between ×3 and +1.