Year 4 Maths

Autumn term

Block D

Lesson 1

 

try-

Spring term

Summer term


 

 

 


How to add numbers together mentally

To add two numbers together you start by adding the units of the second number to the first number, then if there are tens in the second  number you then add these to your new total .
  

Example 1-      34 + 6 = 40

Example 2-      34 + 17=  34 + 7 = 41 and then 41 + 10 = 51

 

 

 

 

Check your answers using your calculator.

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Mental addition

 

 

 

 

 

 

Add these numbers together using mental partitioning

 

a) =
b) =
c) =
d) =
e) =