Free printable math drill — download and print instantly
This Subtracting Multiples Of 10 drill has 40 problems for Grade 1. Nature Reserve theme. Answer key included.
⬇ Download Free Math DrillGet new free worksheets every week.
All worksheets checked by our AI verification system. No wrong answers — guaranteed.
Max spotted 80 animals trapped by a fallen tree! He must free them by solving subtraction problems fast.
Standard: CCSS.MATH.1.NBT.C.6
Subtracting multiples of 10 is a foundational skill that helps Grade 1 students understand how our base-10 number system works. When children can fluently subtract 10, 20, 30, and so on from two-digit numbers, they're building mental math strategies they'll rely on for the rest of their math education. At ages 6 and 7, children's brains are developing the ability to recognize patterns, and multiples of 10 are the clearest pattern in our number system. This skill also connects directly to everyday situations—like when a child has 45 stickers and gives away 20 to a friend, or when you're counting down blocks in a nature reserve trail and subtracting groups of 10 to see how many remain. Mastering this concept boosts confidence and reduces anxiety around subtraction, setting children up for success with larger numbers and more complex operations in second grade.
Many first graders mistakenly subtract the 10 from the entire number without understanding place value—for example, solving 34 - 10 by simply removing the 1 to get 24 instead of 34 - 10 = 24. Another common error is students subtracting both digits when they see a multiple of 10, such as answering 56 - 20 = 35 by subtracting 2 from both the 5 and the 6. Watch for students counting back by ones instead of recognizing the pattern that subtracting 10 only changes the tens place. If a child is slow or makes errors on these problems, ask them to show you with objects or fingers how many tens they're removing—this reveals whether they truly understand place value or are just guessing.
Use a simple number line drawn on paper or a whiteboard and physically slide a finger back by groups of 10. Start with a number like 47 and say, 'We're at 47. Let's take away 10 and see where we land'—slide back to 37. Then do it again: 'Take away 10 more, where are we now?' Land on 27. This visual, kinesthetic approach helps 6- and 7-year-olds see that only the tens digit changes while the ones digit stays put. Repeat with different starting numbers, and soon your child will internalize the pattern without needing to count or calculate.