Estimation of Whole Number Addition and Subtractio n To estimate means to find an answer that is close to the exact answer. The key with estimation is to only use it in instances that don’t require an exact answer. Estimation means to find an answer that makes sense and works with the problem, but is not necessarily exact. You can estimate sums (the answers to addition problems), and differences (the answers to subtraction problems) . The first step in estimating a sum or a difference is to round the numbers, by changing them to the nearest power of ten, hundred, thousand, etc. Round the numbers first, then use mental math to estimate an answer. When rounding, follow these rounding rules: When rounding, follow these rounding rules: When rounding, follow these rounding rules: If the number being rounded is less than 5, round down. If the number being rounded is 5 or greater, round up. Some key things to think about when estimating: The estimate m
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YUVASRI-3D
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Anushka Bhat 3B
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Sreelakshmi 3E
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Sarah Maraiam John - Grade 3-0
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Saira Susan Prince 3S
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Adinath Mangle 3A
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ReplyDeleteAditi M. Kokare. 3/A
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Shraddha 3A
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Aarush 3A
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