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Mental Math And Estimation-Grade 3
Test Description: Chapter 2 review for grade 3
Instructions: Answer all questions to get your test result.
1) 387+96= _________- 4
A
487
B
483
C
475
D
479
2) 455 - 99= 456 - _______
A
199
B
100
C
101
D
200
3) Tony sells 7,359 gallons of gasoline. What is this volume rounded to the nearest hundred?
A
7360 gallons
B
7400 gallons
C
7000 gallons
D
7300 gallons
4) Which is a reasonable estimate of the difference between 8,446 and 2,312.
A
8,000
B
5,000
C
6,000
D
10,000
5) Add mentally: 62+27
A
80
B
87
C
89
D
100
6) subtract mentally: 53-11
A
41
B
40
C
42
D
60
7) Use Front End estimation: 632+421
A
1035
B
1100
C
800
D
1000
8) Estimate to solve: Paul has 72 cards. He gives away 59 cards. About how many cards does he have left?
A
20
B
0
C
10
D
30
9) Use estimation to solve: Rick has $99. He saves another $46. About how much money does he have now?
A
$146
B
$150
C
$140
D
$50
10) The _____________ in a number is the digit with the greatest place value.
A
five
B
hundreds
C
leading digit
D
front end estimation
*select an answer for all questions
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