Grade 1 - Math
6 printable versions - On Level - About 5 minutes each
Grade 1 - Math - On Level
Worksheet 1Ten more than 86 is ____
Ten less than 48 is ____
Ten more than 82 is ____
Ten less than 77 is ____
Ten more than 80 is ____
Ten less than 61 is ____
Ten more than 68 is ____
Ten less than 87 is ____
Ten more than 22 is ____
Ten less than 23 is ____
Adding or subtracting ten is a place-value idea. The ones stay the same while the number of tens changes by one. First graders who count by ones can still answer these problems, but that hides the structure they need for later mental addition and subtraction. This worksheet asks children to find ten more, ten less, and the number that sits one ten away from a given value. Base-ten block questions reinforce that a ten rod is being added or removed, not ten random counts recited from memory. Support pages stay between 20 and 60 so ten less remains positive. Standard and challenge pages include larger two-digit numbers and mixed directions. Ask children to cover the ones digit and watch how only the tens digit changes.
Ten more than 46 is 56 because the 4 tens become 5 tens and the 6 ones stay 6.
Changing both digits or counting one by one and losing track.
Change the tens digit by one and keep the ones digit.