Max Maths, Year 5, Work Book, Angles on a straight line

The "Max Maths Year 5 Workbook" contains an exercise on understanding and calculating angles on a straight line. Practice 2 is designed to help students find missing angles with the knowledge that the sum of angles on a straight line is 180 degrees. In question 1(a), students are presented with a straight line segment ABD, where they are asked to calculate the missing angle, given that one of the angles is 40 degrees. The task involves subtracting the known angle from 180 degrees to find the unknown angle. Similarly, in 1(b), on another straight line segment NMO, the students must find the missing angle when one angle is given as 160 degrees.

Continuing with the same concept, further examples are provided. In 1(c), on the straight line segment WXZ, students must calculate the missing angle when one is 26 degrees. In 1(d), for the line segment DEG with one angle being 126 degrees, and in 1(e), for the line segment PQS with an angle of 175 degrees, the students apply the same principle. Finally, in 1(f), the exercise presents a straight line segment HIK, where students are given two angles, and they must use these to find the missing angle. The workbook also includes a section for students to show their working as they find the missing angles, reinforcing their understanding of the concept and their arithmetic skills.