Number Ninja
What is 347 + 286 − 159?
474
I’m a 2-digit number. My digits multiply to 24 and add to 10. What am I?
46 or 64
I have 24 legs total. There are only chickens and dogs. If there are 8 animals, how many dogs?
4 dogs
7, 11, 19, 35, 67, __
131
□ + 27 = 64
37
What is 48 × 17?
816
I’m thinking of a number. Half of me plus 14 equals 38. What am I?
48
A $60 item is 25% off, then 10% tax is added. What is the final price?
$49.50
2, 5, 11, 23, 47, __
95
5 × □ = 45
9
What is 3,864 ÷ 12?
322
Three times a number plus twice the number equals 85. What is the number?
17
A rectangle has an area of 144 square units. Its length is 4 units more than its width. What are its dimensions?
10 x 14
1, 4, 10, 22, 46, __
94
□ ÷ 6 = 14
84
What is 25% of 360 + ⅔ of 90?
150
A number is increased by 40%, giving 98. What was the original number?
70
You have 9 identical-looking balls. One is heavier. Using a balance scale only twice, how can you find it?
Split them into groups of 3. Weigh 3 vs. 3. Then weigh 1 vs. 1 from the heavier group.
3, 7, 15, 31, 63, __
127
3 × □ + 8 = 50
14
What is the greatest common factor of 252 and 378?
126
Two numbers have a product of 180 and a sum of 27. What are the numbers?
12 and 15
A clock shows 3:00. What is the smaller angle between the hour and minute hands at 3:40?
130°
2, 6, 12, 20, 30, 42, __
56
□ × 7 − 18 = 80
14