Know Your Subtraction - Double-digit is a set of task cards designed to provide students with opportunities to improve their conceptual understanding of regrouping using pictorial representations of base ten blocks. Working through the questions, students will begin to strengthen their faculty for mental computation which is the perfect training ground for the time when larger number and more complex sets of problems are introduced. Although these cards are commonly used as task cards, they have also been used successfully in math centers or rotations. This resources contains: A total of 25 cards (24 task cards and 1 title card) Student recording sheet Answer key Complete PDF and individual PNG files of the cards also included Instructions: Print, laminate and cut the individual cards. (p. 2-8) Print student sheet (p. 9) and provide each student with a worksheet. You may prefer to allow students to work in pairs Distribute the cards around the room Students may start at any number and work their way through in any order, but it is helpful to remind students to write the answer in the same numbered answer box i.e., if they are on card number 12, they should write their answer in answer box number 12 Check answers Enjoy!

Know Your Addition - Double-digit is a set of task cards designed to provide students with opportunities to improve their conceptual understanding of regrouping and ‘carrying’ using pictorial representations of base ten blocks. Working through the questions, students will begin to strengthen their faculty for mental computation which is the perfect training ground for the time when larger number and more complex sets of problems are introduced. Although these cards are commonly used as task cards, they have also been used successfully in math centers or rotations. This resources contains: A total of 25 cards (24 task cards and 1 title card) Student recording sheet Answer key Complete PDF and individual PNG files of the cards also included Instructions: Print, laminate and cut the individual cards. (p. 2-8) Print student sheet (p. 9) and provide each student with a worksheet. You may prefer to allow students to work in pairs Distribute the cards around the room Students may start at any number and work their way through in any order, but it is helpful to remind students to write the answer in the same numbered answer box i.e., if they are on card number 12, they should write their answer in answer box number 12 Check answers Enjoy!

Math Center: Number Sense Basics – Ten Frames and Tally Marks is a matching activity designed to build a conceptual understanding that amounts can be represented in many ways. The cards are specially designed so that students are required to mentally switch between different concepts as they endeavour to find a complete match. This requires a higher level of thinking than simply using the same visual representation. These cards assist in developing mental computational fluency in young learners, creates flexibility in counting and is an ideal resource for independent math centers or math station rotations. Instructions: Print, laminate and cut the individual cards. Mix the cards. Using the imbedded arrows, students create matches of three. Cards can be divided into as few or as many sets as required. This resource contains: 61 cards / 20 matches (3 cards to a match) and one title card. PDF and PNG files. Enjoy!

Math Center: Number Sense Basics – Counting Fingers and In Words is a matching activity designed to build a conceptual understanding that amounts can be represented in many ways. The cards are specially designed so that students are required to mentally switch between different concepts as they endeavour to find a complete match. This requires a higher level of thinking than simply using the same visual representation. These cards assist in developing mental computational fluency in young learners, creates flexibility in counting and is an ideal resource for independent math centers or math station rotations. Instructions: Print, laminate and cut the individual cards. Mix the cards. Using the imbedded arrows, students create a match of three when they find 3 cards that have the same value. Cards can be divided into as few or as many sets as required. This resource contains: 61 cards / 20 matches (3 cards to a match) and one title card. PDF and PNG files. Enjoy!

Math Center: Number Sense Basics – Counting Objects and Odd or Even is a matching activity designed to build a conceptual understanding that amounts can be represented in many ways. The cards are specially designed so that students are required to mentally switch between different concepts as they endeavour to find a complete match. This requires a higher level of thinking than simply using the same visual representation. These cards assist in developing mental computational fluency in young learners, creates flexibility in counting and is an ideal resource for independent math centers or math station rotations. Instructions: Print, laminate and cut the individual cards. Mix the cards. Using the imbedded arrows, students create matches of three. Cards can be divided into as few or as many sets as required. This resource contains: 61 cards / 20 matches (3 cards to a match) and one title card. PDF and PNG files. Enjoy!

Math Center: Number Sense Basics – Base Ten Blocks and Dominoes is a matching activity designed to build a conceptual understanding that amounts can be represented in many ways. The cards are specially designed so that students are required to mentally switch between different concepts as they endeavour to find a complete match. This requires a higher level of thinking than simply using the same visual representation. These cards assist in developing mental computational fluency in young learners, creates flexibility in counting and is an ideal resource for independent math centers or math station rotations. Instructions: Print, laminate and cut the individual cards. Mix the cards. Using the imbedded arrows, students create a match of three when they find 3 cards that have the same value. Cards can be divided into as few or as many sets as required. This resource contains: 61 cards / 20 matches (3 cards to a match) and one title card. PDF and PNG files. Enjoy!

Math Center: Number Sense Basics – Mixed Subtraction is a matching activity designed to build both a conceptual and working understanding that amounts can be represented in many ways. The cards are specially designed so that students are required to mentally switch between different concepts as they endeavour to find a complete match. This requires a higher level of thinking than simply using the same visual representation. These cards assist in developing mental computational fluency in young learners, creates flexibility in counting and is an ideal resource for independent math centers or math station rotations. Instructions: Print, laminate and cut the individual cards. Mix/shuffle the cards. Using the imbedded arrows, students create a match of three by finding 2 cards that have the same value as the answer card. Cards can be divided into as few or as many sets as required. This resource contains: 61 cards / 20 matches (3 cards to a match) and one title card. PDF and PNG files. Enjoy!

Math Center: Number Sense Basics – Mixed Addition 1-20 is a matching activity designed to build both a conceptual and working understanding that amounts can be represented in many ways. The cards are specially designed so that students are required to mentally switch between different concepts as they endeavour to find a complete match. This requires a higher level of thinking than simply using the same visual representation. These cards assist in developing mental computational fluency in young learners, creates flexibility in counting and is an ideal resource for independent math centers or math station rotations. Instructions: Print, laminate and cut the individual cards. Mix/shuffle the cards. Using the imbedded arrows, students create a match of three by finding 2 cards that have the same value as the answer card. Cards can be divided into as few or as many sets as required. This resource contains: 61 cards / 20 matches (3 cards to a match) and one title card. PDF and PNG files. Enjoy!