[TESTS]
Multiple Choice Qs Practice
[MNM-3.2.1.3T MCQs]
Choose the best estimate for the given problem.
Estimate the sum of 42 and 37 by rounding each number to the nearest ten.
Choose the best estimate for the given problem.
What is the estimated difference of 89 – 31 when rounded to the nearest ten?
Choose the best estimate for the given problem.
About how much is 18 + 52 if you round to the nearest ten?
Choose the best estimate for the given problem.
Which of the following is the best estimate for 76 – 24, rounded to the nearest ten?
Choose the best estimate for the given problem.
If you have 68 marbles and buy 23 more, about how many marbles do you have in total? (Round to the nearest ten.)
Choose the best estimate for the given problem.
Estimate the sum of 149 and 251 by rounding each number to the nearest hundred.
Choose the best estimate for the given problem.
A library has 378 books. If 125 books are borrowed, about how many books are left? (Round to the nearest hundred.)
Choose the best estimate for the given problem.
When estimating 55 + 34 to the nearest ten, what is the correct first step?
Choose the best estimate for the given problem.
To estimate 612 – 287 to the nearest hundred, which calculation would you perform?
Choose the best estimate for the given problem.
Which pair of numbers has an estimated sum of 100 when rounded to the nearest ten?
Quiz Complete!
True or False Qs Practice
[MNM-3.2.1.3T TFQs]
State whether the following statement is True or False.
The estimated sum of 28 + 43, rounded to the nearest ten, is 70.
State whether the following statement is True or False.
To estimate 76 – 32, you would round 76 to 70 and 32 to 30.
State whether the following statement is True or False.
The estimated difference of 91 – 47, rounded to the nearest ten, is 40.
State whether the following statement is True or False.
Rounding 150 to the nearest hundred gives 100.
State whether the following statement is True or False.
Estimating sums and differences always gives you the exact answer.
State whether the following statement is True or False.
If a number’s ones digit is 4 or less, you round down to the nearest ten.
State whether the following statement is True or False.
The estimated sum of 312 + 189, rounded to the nearest hundred, is 500.
State whether the following statement is True or False.
If you round 65 to the nearest ten, you get 60.
State whether the following statement is True or False.
Estimating can help you check if an exact answer is reasonable.
State whether the following statement is True or False.
The estimated difference of 450 – 160, rounded to the nearest hundred, is 300.
Quiz Complete!
True or False with Reason Qs Practice
[MNM-3.2.1.3T TFQRs]
Read the statement and its reason carefully. Choose the option that correctly describes the statement.
The estimated sum of 34 + 58, rounded to the nearest ten, is 90. Is this true?
Read the statement and its reason carefully. Choose the option that correctly describes the statement.
The estimated difference of 72 – 19, rounded to the nearest ten, is 50. Is this true?
Read the statement and its reason carefully. Choose the option that correctly describes the statement.
The sum of 115 + 280, estimated to the nearest hundred, is 400. Is this true?
Read the statement and its reason carefully. Choose the option that correctly describes the statement.
The estimated sum of 45 + 55, rounded to the nearest ten, is 100. Is this true?
Read the statement and its reason carefully. Choose the option that correctly describes the statement.
When estimating 897 – 213 to the nearest hundred, the estimated answer is 700. Is this true?
Read the statement and its reason carefully. Choose the option that correctly describes the statement.
Estimating is useful for checking if a calculated answer is roughly correct. Is this true?
Read the statement and its reason carefully. Choose the option that correctly describes the statement.
If you have 48 apples and give away 21, you have ‘about’ 30 apples left. Is this true?
Read the statement and its reason carefully. Choose the option that correctly describes the statement.
Rounding 349 to the nearest hundred gives 300. Is this correct?
Read the statement and its reason carefully. Choose the option that correctly describes the statement.
The estimated sum of 78 + 12, rounded to the nearest ten, is 90. Is this true?
Read the statement and its reason carefully. Choose the option that correctly describes the statement.
The estimated difference of 605 – 298, rounded to the nearest hundred, is 300. Is this true?
Quiz Complete!
Matching Question Practices
[MNM-3.2.1.3T MQs]
Select an item from Column A, then select its match in Column B.
COLUMN-A
80
50
100
40
400
500
70
60
Estimate
500
COLUMN-B
Quiz Complete!
Fill Blank Qs Practices
[MNM-3.2.1.3T FBQs]
Complete the sentence with the correct word or number.
To estimate the sum of 41 and 28, you would round 41 to 40 and 28 to — Select —90tens60030reasonableestimateround down4070.
Complete the sentence with the correct word or number.
The estimated difference of 79 – 12, when rounded to the nearest ten, is — Select —estimatereasonableround down7060040tens9030.
Complete the sentence with the correct word or number.
When you see ‘about how many’, it tells you to — Select —600tensround down3090reasonableestimate4070 the answer.
Complete the sentence with the correct word or number.
Rounding 35 to the nearest ten gives — Select —reasonableestimate40706009030tensround down.
Complete the sentence with the correct word or number.
The estimated sum of 210 and 390, rounded to the nearest hundred, is — Select —7040tensreasonableestimate90round down60030.
Complete the sentence with the correct word or number.
To round a number to the nearest hundred, you look at the — Select —4030tens90600round downreasonable70estimate digit.
Complete the sentence with the correct word or number.
The actual sum of 52 + 37 is 89. Its estimate (nearest ten) is — Select —round downestimate309040600tensreasonable70.
Complete the sentence with the correct word or number.
Estimating helps us check if our exact answer is — Select —round down70estimatetens9030reasonable40600.
Complete the sentence with the correct word or number.
If a number has a ones digit of 1, 2, 3, or 4, you — Select —estimateround downreasonable70906003040tens to the nearest ten.
Complete the sentence with the correct word or number.
The estimated difference of 876 – 312, rounded to the nearest hundred, is — Select —round downreasonabletens6004070estimate9030.
Quiz Complete!
Numerical Exercise Qs Practices (Set-1)
[MNM-3.2.1.3T NEQs1]
Estimate the sum by rounding each number to the nearest ten.
34 + 57 — Select —3040070500504090
Estimate the sum by rounding each number to the nearest ten.
48 + 23 — Select —7040400903050050
Estimate the difference by rounding each number to the nearest ten.
82 – 39 — Select —5030400500409070
Estimate the difference by rounding each number to the nearest ten.
66 – 15 — Select —5004030905070400
Estimate the sum by rounding each number to the nearest hundred.
110 + 290 — Select —4050090703050400
Estimate the difference by rounding each number to the nearest hundred.
780 – 320 — Select —9040705005030400
Estimate the sum by rounding each number to the nearest ten.
55 + 34 — Select —9040070305004050
Estimate the difference by rounding each number to the nearest ten.
91 – 58 — Select —7040040305090500
Quiz Complete!
Numerical Exercise Qs Practices (Set-2)
[MNM-3.2.1.3T NEQs2]
Estimate the sum by rounding each number to the nearest hundred.
375 + 120 — Select —50080409020800600300
Estimate the difference by rounding each number to the nearest hundred.
649 – 281 — Select —90208060040800500300
Estimate the sum by rounding to the nearest ten.
16 + 72 — Select —60080500403009020800
Estimate the difference by rounding to the nearest ten.
53 – 28 — Select —80402090600800300500
Estimate the sum by rounding to the nearest hundred.
408 + 395 — Select —20908030080040500600
Estimate the difference by rounding to the nearest hundred.
903 – 571 — Select —20908006003004050080
Estimate the sum by rounding each number to the nearest ten.
61 + 19 — Select —80203004050060080090
Estimate the sum by rounding each number to the nearest hundred.
249 + 351 — Select —80500204090800300600
Estimate the difference by rounding each number to the nearest ten.
70 – 27 — Select —60090805002080030040
Quiz Complete!
Numerical Exercise Qs Practices (Set-3)
[MNM-3.2.1.3T NEQs3]
Estimate the difference by rounding each number to the nearest hundred.
850 – 410 — Select —401008005006040050
Estimate the sum by rounding each number to the nearest ten.
25 + 65 — Select —800604005050010040
Estimate the difference by rounding each number to the nearest ten.
103 – 48 — Select —500504060400100800
Estimate the sum by rounding each number to the nearest hundred.
560 + 230 — Select —100400406080050500
Estimate the difference by rounding each number to the nearest hundred.
720 – 180 — Select —800100405006050400
Estimate the total by rounding each number to the nearest ten.
Apples: 38, Oranges: 21. Total fruits? — Select —800400405001006050
Estimate the remaining amount by rounding each number to the nearest ten.
Had 92 pencils, used 47. Pencils left? — Select —500506040010040800
Estimate the total by rounding each number to the nearest hundred.
Page 1: 170 words, Page 2: 230 words. Total words? — Select —400508006010040500
Estimate the difference by rounding each number to the nearest hundred.
Had 590 stickers, gave away 210. Stickers left? — Select —504010060400800500