Whole Numbers Addition: 0 to 9 | |||||||||
![]() Common Core Math Alignment: 2.OA.2. Fluently add and subtract within 20 using mental strategies.
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50% (375 x 200) |
75% (563 x 300) |
100% (750 x 400) |
150% (1125 x 600) |
200% (1500 x 800) |
300% (2250 x 1200) |