Number Sense
Of the following numbers, which one is composite? 2, 3, 4, or 5
4
999 + 998 + 1
1998
A farmer packs apples into boxes of 12. If he has 96 apples, how many boxes can he fill?
8 boxes
Which month has 28 days?
All of them
What is half of 2 plus 2?
3
A 4-digit number has the form 3A5B. The number is divisible by 8 and 9. Find the number.
3456
72 ÷ 0.5
144
A teacher divides some pencils equally among 18 students. If each student receives 23 pencils and 11 pencils remain, how many pencils were there?
425 pencils
Maria’s father has 5 daughters:
Nana, Nene, Nini, Nono, and ____?
Maria
I am an odd number. If you take away one letter from my name, I become even. What number am I?
Seven
I am odd, prime, and the sum of my digits is 8. Who am I?
17
48 x 25
1200
Three consecutive even numbers add up to ninety. What is the largest number?
32
Five birds are sitting on a tree.
A hunter shoots one.
How many birds are left?
0
(The rest fly away.)
Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation
2 + 5 = 3 + 4
Find the next two terms.
2, 3, 5, 9, 17, 33, …, ....
65, 129
15% of 640
96
A number is divided by 7, then the result is increased by 18, and finally multiplied by 5.
The final answer is 235.
203
You see 6 eggs in a basket. You take away 4. How many eggs do you have?
4 (you took away 4, that’s what you have).
I am a number with a couple of friends, quarter a dozen and you’ll find me again. What am I?
3
Find the value of 1 + 2 + 3 + ...... + 199.
19 900
101² - 1²
10 200
In March, Bella saved 5 times as much as she spent.
If she saved $186 more than she spent,
how much did she spend in March?
$46.5
You have 3 containers: 8L, 5L, 3L. How to measure exactly 4L? (Start with 8L full.)
8 - 0 - 0
3 - 5 - 0
3 - 2 - 3
6 - 2 - 0
6 - 0 - 2
1 - 5 - 2
1 - 4 - 3
I am four times as old as my daughter. In 20 years’ time I shall be twice as old as her. How old are we now?
I am 40 and my daughter is 10