Adding whole tens - Exercise 1

This worksheet focuses on adding whole tens, challenging fourth graders to find the sums of four two-digit numbers in each problem. By practicing these calculations, students strengthen their addition skills and develop a deeper understanding of how numbers work together. This activity is great for reinforcing mental math strategies and can be used as a warm-up exercise, an independent practice task, or a review session prior to a quiz. Encourage students to group the numbers in different ways to see how it helps them find the sum more easily.