Two-Digit Numbers Math Riddle Activities

Rated 4.89 out of 5, based on 49 reviews
49 Ratings
Grade Levels
1st - 2nd, Homeschool
Resource Type
Formats Included
  • Zip
7 student pages
Also included in
  1. This bundle of 23 math riddle sets will keep your students challenged by a wide variety of addition and subtraction topics!You'll save more than 30% over the cost of purchasing them separately when you buy these riddle sets in this bundle!Click on any of the pictures to get a closer look at the mat
    Price $62.50Original Price $91.75Save $29.25


Use this set of eight math task cards and printable pages to strengthen skills with operations and place value in your first grade and second grade students. Choosing from a grid of four numbers, your students will solve numerical expressions with two-digit numbers to eliminate three of the options. The remaining number is "Shark's Secret Number"!

This resource is also included in First Grade Math Riddle Task Card Bundle. Click here to see it!

To provide you with alternative uses for these fun cards, all of the riddles are also presented in a multiple choice format (two printable pages). How can you use these worksheets?

♦ Provide a page (or print both back to back!) as a fun homework alternative

♦ Their multiple choice format makes them ideal for test prep! Work the items through together, modeling how to eliminate alternatives, or use the pages for individual practice or assessment.

This set also includes...

♦ A hundred chart for extra support as needed

♦ A student recording page and answer key

Math skills addressed in this set include …

Add and subtract one-digit and two-digit numbers, with no regrouping

Compare numbers using symbols ( > and < )

♦ Know value of coins (nickels and dimes)

Here are some options for using the task cards …

♦ Use in a math center for individual or partner work

♦ Use for whole class review with your document camera

♦ Use as a skills review rotation, individually or with partners, with

students moving to stations around the classroom to solve the


♦ Use for morning “bell ringers”

Plus, they're the perfect addition to your Shark Week activities!


Are you looking for more math riddle task cards? Try these!

Missing Addend Riddle Task Cards

Pirate's Secret Treasure ~ Riddles for Two-Digit Numbers

Coin Riddle Task Cards ~ Superhero's Secret Number

Adding and Subtracting Tens ~ Dino's Secret Numbers

Riddles for the Numbers Surrounding 100 ~ Buzzin' Around 100

Sweet Sums Math Riddle Cards ~ Adding Two-Digit Numbers with No Regrouping

Math Snacks Riddle Cards ~ Two Digit Addition with Regrouping

Math Treats Bundle ~ Adding Two Digit Numbers With Regrouping, Without Regrouping, and Mixed Practice

Adding 3 Two Digit Numbers ~ Shark's Secret Number


Linda Nelson grants permission to the original downloader to reproduce material for his or her own classroom use only. No other part of this work may be reproduced in whole or in part by electronic or mechanical means including information storage and retrieval systems without permission in writing from the author.


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Total Pages
7 student pages
Answer Key
Teaching Duration
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to see state-specific standards (only available in the US).
Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:
Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.
Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.


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