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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
479
B
475
C
487
D
483
2) 455 - 99= 456 - _______
A
100
B
200
C
101
D
199
3) Tony sells 7,359 gallons of gasoline. What is this volume rounded to the nearest hundred?
A
7000 gallons
B
7360 gallons
C
7400 gallons
D
7300 gallons
4) Which is a reasonable estimate of the difference between 8,446 and 2,312.
A
10,000
B
5,000
C
6,000
D
8,000
5) Add mentally: 62+27
A
87
B
89
C
100
D
80
6) subtract mentally: 53-11
A
60
B
42
C
41
D
40
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
0
B
30
C
10
D
20
9) Use estimation to solve: Rick has $99. He saves another $46. About how much money does he have now?
A
$140
B
$150
C
$146
D
$50
10) The _____________ in a number is the digit with the greatest place value.
A
leading digit
B
hundreds
C
five
D
front end estimation
*select an answer for all questions
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