Maths Challenge - Maths Challenge 1 - Adding and subtracting two-digit numbers - 麻豆官网首页入口 Sounds
Maths Challenge - Maths Challenge 1 - Adding and subtracting two-digit numbers - 麻豆官网首页入口 Sounds
Maths Challenge 1
Adding and subtracting two-digit numbers
Ralph van Dijk has the questions and the subject of today's quiz is the addition and subtraction of two-digit numbers.