Block 2 Number 1
1. Write down all the odd numbers less than 10.
2. Copy and continue the following sequences for 2 more terms
a) 1, 4, 7, 10, _ , _
b) 38, 36, 34, 32, _ , _
3. Mary is counting how many socks she has. They are in pairs
Copy and complete the table
Number of Pairs
2 Pairs
Number of Socks
4
3 Pairs
?
4 Pairs
?
4. The number 24 has many factors
Copy and complete for ALL the pairs of factors for 24
a) 1 x 24
b) ? x 12
c) 3 x ?
d) ? x ?
5. Jamie is playing with his marbles. He makes a pattern.
Copy the patterns and draw the next one
How many marbles does he need for each ?
6. Calculate 4 x 5 - 3
?
Block 2 Number 2
1. a) Write down the multiples of 6 less than 50.
b) Which of the following are factors of 60 ?
1, 2, 3, 4, 15, 30
2. Write down the next two terms in the following sequences
a) 17, 14, 11, 8,
b) 2, 5, 10, 17, 26,
3. Calculate
a) 8 + ( 3 + 2 ) – 4
b) 2 + 3 x 4
4. A shop has 2 sets of flashing Christmas lights
One set flashes every 5 seconds and the other every 6 seconds
If they are both on now, how long will it be until are both on again
Block 2 Number 3
1. Find
a) the L.C.M. of 6 and 8
b) the H.C.F. of 30 and 12
2. Calculate
a) 22 – 3 x 5
b) 60 x 8 + 7
c) 184 – 96  8
d) 14.7 x 26
e) 4.23 x 0.7
3. Write down the next two terms in the following sequences
a) 1, 4, 9, 16, _ , _
b) 1, 3, 6, 10, _ , _
c) 1, 8, 27, 64, _ , _
4. Lighthouse Hurricane flashes its light towards Crab Rock once every 20
second.
Lighthouse Sundial flashes its light towards Crab Rock once every 15
seconds.
You are ship wrecked on Crab Rock and sometimes you can see both
lights at once
How often does this happen?
Block 2 Number 4
1. Write down all the factors of 72 and 108
Hence. Or otherwise, find the HCF of 72 and 108
2. Write down all the prime numbers less than 20
3.
a) Find the prime factors of 60
b) Write 60 as a product of prime factors
4. Find the value of
a)
12 + 24  8
b)26 – 321 + 578