General
Unit 13: Missing numbers in addition, subtraction, multiplication or division
13.1 Discover the unknown number by quick addition or subtraction
Activity 13.1.1
\
Activity 13.1.2
Activity 13.1.3
Activity 13.1.4
Activity 13.1.5
Activity 13.1.6
I have learnt that:
Activity 13.1.7
13.2 Finding the missing number in a number sentence with multiplication or division
Activity 13.2
I have learnt that:
13.3. Number pattern
(a) Finding the common difference in a number pattern
Activity 13.3.1
(b) Finding the missing number in the number pattern
Activity 13.3.2
END UNIT ASSESSMENT 13
