Add and Subtract 10 and 100 Word Problems Worksheet
Practice this add and subtract 10 and 100 word problems worksheet with three number stories and a 10 more, 10 less, 100 more, 100 less chart. Built for 2nd Grade with an answer key included, so mental math clicks fast.
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About this resource
Description
Learning to add and subtract 10 and 100 in your head is one of the biggest number sense jumps second graders make, and this add and subtract 10 and 100 word problems worksheet gives them a friendly place to practice it. When a student can look at a three-digit number and say right away what is ten more, ten less, one hundred more, or one hundred less, that student is showing real understanding of place value. Every problem on this page asks learners to think first and write second, which is exactly how mental math skills are built.
The page opens with three short number stories about a sticker album, a bin of building blocks, and a jar of pennies. Each story is written at a second grade reading level and ends with one clear question, so children spend their energy on the math instead of on decoding the words. Below the stories, a place value chart asks students to fill in 10 more, 10 less, 100 more, and 100 less for four different three-digit numbers, including one that crosses a hundred. Print the file, hand it out, and use the included answer key to check the whole page in seconds.
What’s Included
- A printable two-page PDF worksheet, ready to copy for the whole class
- Three second grade number stories with a solid answer line and unit label
- A 10 More, 10 Less, 100 More, 100 Less chart with sixteen blanks to fill in
- A complete answer key on the final page
This 2nd grade mental math worksheet helps children in three ways. First, it moves addition and subtraction off paper and into the head, which is where second grade standards want it. Second, it pairs word problems with a chart, so learners meet the same idea in two formats and see that they are the same skill. Third, the numbers were chosen on purpose, including one that crosses a hundred, so students cannot answer by copying a pattern.
Teachers can use this add and subtract 10 and 100 word problems worksheet as a warm up, a math center task, or a quick check before a place value quiz. Ask students to explain out loud how they found one hundred more before they write it. Parents can extend the page at home by calling out a house number, a page number, or a price and asking for ten more and one hundred less. For extra practice, cover the chart and have your child build each answer with base ten blocks.
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