Math Bingo – Cards can be printed out or made with paper/pencil. The activity can be adapted for a number of concepts, including addition, subtraction, multiplication, and division. The following link provides a template for free Bingo Cards.
Floor Plan - Students create a scale diagram of the main floor of their house, or of their bedroom. Students will need a tape measure and will work with ratios during this activity. They will need to use graph paper.
You can print this grid paper if you don't have any at home.
https://www.hand2mind.com/pdf/gridpaper.pdf
DreamBox Learning is an online software provider that focuses on mathematics education at the elementary and middle school level. Some teachers have students enrolled in this program already, if not, parents can sign their children up to a 90 day free trial.
Entertaining educational videos, mini-lessons and games. BrainPOP Jr. spans topics across Science, Social Studies, Reading, Writing, Math, Health, Arts, and Technology.
Gently encourages young learners to ask questions and form their own ideas.
Multi/cross-disciplinary resource from K-12. Please note that while the site states that it is suitable for elementary/primary, it might be more suited for grades 3 and up.