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Use the rounding or compatible numbers to estimate the sum. 87+34=121 we got 90+30= 110
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Use the rounding or compatible numbers to estimate the sum.
87+34=121 we got 90+30= 110

User Ayush Vatsyayan
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1 Answer

4 votes
90 + 30 =120, you were close but 121 doesn't round to 110.
User Agung Pratama
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