Which equations model the most reasonable estimate of the difference?
b and c
432 − 176
256
The third graders have 250 erasers and scissors in the school store. They sell 47 erasers and 33 pens. How many erasers and scissors are left in the store? Show your work.
170
706 − 427
279
Which equations model the most reasonable estimate of the sum? 719 + 189
b or c
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