This fun and engaging riddle worksheet is the perfect way to encourage your students to use number lines to solve basic subtraction problems. Students will simply solve each problem before cracking the code to find the answer to the riddle.
Add and subtract numbers within 20, using physical and virtual materials, part-part-whole knowledge to 10 and a variety of calculation strategies
Represent and solve simple addition and subtraction problems using a range of strategies including counting on, partitioning and rearranging parts
Describes mathematical situations and methods using everyday and some mathematical language, actions, materials, diagrams and symbols
Uses objects, diagrams and technology to explore mathematical problems
Supports conclusions by explaining or demonstrating how answers were obtained
Uses a range of strategies and informal recording methods for addition and subtraction involving one- and two-digit numbers
Uses number bonds and the relationship between addition and subtraction to solve problems involving partitioning