Center includes 18 (mixed addition and subtraction) cards along with recording sheet for students to record and draw each math fact.
First Grade Common Core Math:
~ 1.NBT.4: 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.
~ 1.NBT.6: 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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