Number Sense
What is the smallest number that is divisible by both 6 and 8?
24
Which is larger: 0.7 or ⅔?
0.7
How many lines of symmetry does a square have?
4
A cinema ticket costs €8.50. How much do 5 tickets cost?
€42.50
What comes next?
2, 4, 8, 16, _
32
A number is divisible by 2, 3 and 5. It is between 50 and 70. What is the number?
60
A bottle contains 2 litres of juice. If ¾ is used, how much remains?
½ litre
A rectangle is 12 cm long and 7 cm wide. What is its perimeter?
38 cm
A train leaves at 09:45 and arrives at 12:20. How long is the journey?
2 hours 35 minutes
What comes next?
1, 4, 9, 16, 25, __
36
What is 25% of 240?
60
What is ⅜ of 64?
24
A rectangle has area 72 cm² and width 8 cm. What is its length?
9 cm
A shop reduces a €60 football by €15. Then takes another €5 off. What is the final price?
€40
I am thinking of a number.
Double me and add 7.
The answer is 31.
What number am I?
12
Find two consecutive numbers whose product is 132.
11 and 12
A class of 32 pupils. ¾ are present. How many pupils are absent?
8
The angles in a quadrilateral add up to how many degrees?
360°
Three friends share €72 in the ratio 2 : 3 : 4. How much does the friend with the largest share receive?
9 parts
72 ÷ 9 = 8
4 × 8 = €32
A farmer has chickens and cows.
There are 18 heads and 52 legs.
How many cows are there?
8 cows
10 chickens
A number is multiplied by 4 and then 12 is subtracted. The answer is 40. What was the original number?
13
Emma spends ⅖ of her money and then spends half of what remains. She starts with €100. How much money is left?
⅖ of €100 = €40 spent
€60 remains
Half of €60 = €30 spent
€30 left
A triangle has angles in the ratio 2 : 3 : 4. What is the largest angle?
Total parts = 9
180 ÷ 9 = 20
Largest angle = 4 × 20
= 80°
A school orders chairs in packs of 6. They need 95 chairs. What is the smallest number of packs they must buy?
95 ÷ 6 = 15 remainder 5
Need 16 packs
There are 100 lockers.
Locker 1 is opened.
Every 2nd locker is changed.
Then every 3rd locker is changed.
Then every 4th locker, and so on until locker 100.
Which lockers remain open at the end?
The lockers with perfect square numbers:
1, 4, 9, 16, 25, 36, 49, 64, 81, 100
(Because only perfect squares have an odd number of factors.)