用整千估算、计算3196+5260+2831.-数学

题目简介

用整千估算、计算3196+5260+2831.-数学

题目详情

用整千估算、计算   
3196+5260+2831.
题型:解答题难度:中档来源:不详

答案

3196+5260+2831,
≈8000+2800,
≈10800;
3196+5260+2831,
=8456+2831,
=11287;

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