Number Triangles
Welcome to this great collection of 100 number triangle puzzles. Number triangle puzzles offer the opportunity to practice addition and subtraction skills. In a number triangle puzzle, there are three lines. The number in the circle at the centre of each line is the sum of the two numbers in the squares at each end of the line. To solve these puzzles, the solver is required to deduce what the three numbers are and then write them down in the squares to complete the number triangle. Solutions are included at the back of the book for the solver to check their answers, or if they get stuck while doing the puzzles and need to take a peek along the way.
