Subtract a single digit number from a teens number

The ArithmeKit from Buzzard Publishing offers a variety of exercises designed to help students master the concept of subtraction, specifically focusing on subtracting single-digit numbers from teen numbers. The kit includes a series of calculations that challenge students to apply their understanding of basic subtraction. For example, when subtracting 4 from 13, the result is 9, and subtracting 6 from 18 yields 12. These exercises not only provide practice in subtraction but also help students recognise patterns, such as the fact that subtracting a number from itself always results in zero, and subtracting a number from a consecutive one gives the answer one.

In addition to straightforward calculations, the ArithmeKit encourages deeper thinking with activities that require students to find missing numbers that make the statements true, using each of the digits 0 to 9 exactly once. For instance, to solve "1 - _ = 11," students must determine which digit to place in the box. The kit also includes matching pairs exercises, where students match subtraction statements with their correct outcomes, such as "15 - 1 = 14" and "15 - 9 = 6." Upon completing these exercises, students are prompted to observe patterns, such as consistently ending with the number 10 when subtracting the number of ones from a teen number. This engaging approach to arithmetic helps solidify students' understanding and recall of basic subtraction facts.