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Estimating Sums And Differences
Test Description: Estimating sums and differences for numbers with 4 or more digits.
Instructions: Answer all questions to get your test result.
1) Estimate to the nearest thousand the sum of 5,323 and 2,611.
A
5,300 + 2,600 = 7,900
B
5,000 + 2,000 = 7,000
C
6,000 + 3,000 = 9,000
D
5,000 + 3,000 = 8,000
2) Estimate to the nearest thousand the difference of 9,524 and 4,025.
A
9,500 - 4,000 = 5,500
B
9,000 - 4,000 = 5,000
C
10,000 - 5,000 = 5,000
D
10,000 - 4,000 = 6,000
3) Estimate to the nearest thousand the sum of 5,317 and 1,734.
A
8,000
B
6,000
C
10,000
D
7,000
4) Estimate to the nearest thousand the difference of 9,668 and 2,489.
A
6,000
B
10,000
C
7,000
D
8,000
5) Estimate to the nearest thousand the difference of 24,300 and 10, 125.
A
24,000 - 10,000 = 14,000
B
25,000 - 10,000 = 15,000
C
24,000 - 11,000 = 13,000
D
I have no clue.
6) Estimate to the nearest thousand the sum of 39,761 and 59,499.
A
I have no clue.
B
40,000 + 59,000 = 99,000
C
39,000 + 59,000 = 98,000
D
40,000 + 60,000 = 100,000
7) Round 34,506 to the nearest hundred.
A
34,500
B
34,400
C
34,000
D
35,000
8) Round 56,780 to the nearest thousand.
A
56,000
B
57,000
C
50,000
D
60,000
9) Round 8,912 to the nearest tens.
A
8,900
B
8,920
C
9,000
D
8,910
10) Round 75,845 to the nearest ten thousand.
A
76,000
B
80,000
C
75,000
D
70,000
*select an answer for all questions
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