Estimating a Decimal Sum or Difference Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Estimating a Decimal Sum or Difference . You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Answer : B
Explanation
Step 1:
The estimated sum after rounding each number to the nearest hundredth is
59.265 + 63.284 − 32.469 – 15.273 =
59.27 + 63.28 – 32.47 – 15.27 =
Step 2:
122.55 – 47.74 = 74.81
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Answer : C
Explanation
Step 1:
The estimated sum after rounding each number to the nearest tenth is
83.06 + 23.37 −18.76 – 16.53 =
83.1 + 23.4 – 18.8 – 16.5 =
Step 2:
106.5 – 35.3 = 71.2
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Answer : D
Explanation
Step 1:
The estimated sum after rounding each number to the nearest tenth is
86.74 + 43.67 − 28.63 – 18.81 =
86.7 + 43.7 – 28.6 – 18.8 =
Step 2:
130.4 – 47.4 = 83.0
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Answer : A
Explanation
Step 1:
The estimated sum after rounding each number to the nearest hundredth is
63.123 + 53.468 − 29.837 – 12.541 =
63.12 + 53.47 – 29.84 – 12.54 =
Step 2:
116.59 – 42.38 = 74.21
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Answer : C
Explanation
Step 1:
The estimated sum after rounding each number to the nearest tenth is
58.07 + 23.45 − 18.73 – 15.64 =
58.1 + 23.5 – 18.7 – 15.6 =
Step 2:
81.6 – 34.3 = 47.3
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Answer : D
Explanation
Step 1:
The estimated sum after rounding each number to the nearest tenth is
43.03 + 12.48 − 8.52 – 14.29 =
43.0 + 12.5 – 8.5 – 14.3 =
Step 2:
55.5 – 22.8 = 32.7
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Answer : B
Explanation
Step 1:
The estimated sum after rounding each number to the nearest tenth is
37.51 + 43.71 − 18.60 – 13.68 =
37.5 + 43.7 – 18.6 – 13.7 =
Step 2:
81.2 – 32.3 = 48.9
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Answer : C
Explanation
Step 1:
The estimated sum after rounding each number to the nearest tenth is
78.94 + 67.41 − 28.78 – 13.62 =
78.9 + 67.4 – 28.8 – 13.6 =
Step 2:
146.3 – 42.4 = 103.9
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Answer : A
Explanation
Step 1:
The estimated sum after rounding each number to the nearest hundredth is
67.097 + 34.593 − 27.465 – 44.763 =
67.10 + 34.59 – 27.47 – 44.76 =
Step 2:
101.69 – 72.23 = 29.46
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Answer : B
Explanation
Step 1:
The estimated sum after rounding each number to the nearest tenth is
87.85 + 43.31 − 17.90 – 24.14 =
87.9 + 43.3 – 17.9 – 24.1 =
Step 2:
131.2 – 42.0 = 89.2
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estimating_decimal_sum_or_difference.htm
