Year 3 & 4 Maths Challenge

 1) Find the next two numbers 

6, 12, 18, 24, ___, ___

7, 14, 21, 28, 35, ___, ___

 9, 18, 27, 36 ___, ___

 25, 50, 75, ___ ,___

5000, 6000, 7000 ___ ,___

2) What is the same and what is different about these two number sequences?

 6, 12, 18, 24, 30….. 

45, 36, 27, 18, 9……

3) Find the missing value 

3,891 + ______= 4,891

4) Add one thousand to 2,554 

Add ten hundreds to 2,554 

What do you notice? 

Why does this happen?

5) Anna is counting down from 11 in fives. 

Does she say -11?

 Explain your reasoning.

6)Complete these calculations:

 7 x 8= 

7 x 4 x 2=

 5 x 6 = 

5 x 3 x 2= 

12 x 4 =

 12 x 2 x 2=

7) True or False 

6 x 8 = 6 x 4 x 2 6 x 8 = 6 x 4 + 4 

Explain your reasoning. 

8) Can you write the number 24 as a product of three numbers?

9)Mrs Ward orders some new whiteboard pens for Year 3 and 4.

 There are 160 children in Year 3 and 4. 

If she orders 6 boxes of 27 pens, will she have enough?

 Show your calculation.

10) Mrs Bamgboye estimates; 

399 x 60 = 240,000 

Is this a good estimate? 

Explain why