Max Rescues the Veterans Day Parade: Math Sprint!

About this Grade 2 Mixed Add Subtract Drill

Mixed addition and subtraction problems are crucial for Grade 2 students because they require flexible thinking about numbers and operations. At ages 7-8, children are developing the ability to switch between adding and subtracting within the same problem set, which mirrors real-world scenarios—like when a child receives allowance (add), then spends it on a toy (subtract). This skill strengthens number sense and helps students recognize that addition and subtraction are related operations. Mastering mixed problems also builds confidence in math fluency and prepares students for multi-step word problems later. When students practice these drills, they're training their brains to read carefully, choose the right operation, and compute accurately—all essential foundations for elementary mathematics success.

What your student will practice

• Identify whether to add or subtract based on problem symbols and context clues
• Solve mixed addition and subtraction problems within 20 fluently and accurately
• Demonstrate understanding that addition and subtraction are inverse operations
• Apply mixed operations to solve simple two-step scenarios and real-world situations

Common mistakes to watch for

The most common error Grade 2 students make is ignoring the operation symbol and always adding, especially when problems are presented in a grid. Watch for a student who solves 15 – 7 by adding to get 22, or one who uses the first number in every problem regardless of whether the symbol is + or −. Another frequent mistake is confusing the direction: starting with the wrong number or reversing the order. Parents and teachers can spot this by checking if errors cluster around subtraction problems or if the student rushes through without looking at the symbol first.