คำศัพท์คณิตศาสตร์
TOPIC Addition,place value
Activity : Decoding
Each letter stands for a digit between 0 and 9.Find the value of each letter in the sums shown.
TOPIC Forming and solving equations
Activity : Find the number
1. Find two whole number which multiply together to make 221.
2. Find two whole number which multiply together to make 41.