Center includes 26 two digit addition and subtraction cards with recording sheet and answer key.
Students can solve using multiple strategies:
~Use a 120 chart to move up, down or forward depending on the math fact
~Count on or count back in head
~Draw the math fact using tens and ones
~Use manipulatives such as tens and ones to build and solve math fact
Meets Common Core Math Standards for First Grade 1.NBT.4 & 1.NBT.6
Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of ten, using models or drawings. Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 using concrete models or drawings.
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