Scholastic
Adding and Subtracting Ten
Developing fluency with basic addition and subtraction is fundamental to the success of all young mathematicians. This four-day instructional activity series begins with learners using ten-frames and hundreds charts to recognize patterns...
Study Pad
Splash Learn: Common Core Math Standards 1.nbt.6
[Free Registration/Login Required] Practice subtracting multiples of 10 with this online game! Choose the correct answer to the question to collect coins. Problems are shown using base ten blocks as examples or number sentences.