Mental Math Class 5 Worksheet – Estimation
Mental Math Class 5 Worksheet Chapter Number. Here in this page we have given total 25 Questions Set with Solution for Students.
From Q1 to Q5 Round off the following numbers to nearest ten:
(Q1) 343
Solution:
We have to round off 343 to nearest tens.
Here, 3 is less than 5
∴ 343 is rounded off to 340
(Q2) 308
Solution:
We have to rounded off 308 to nearest ten.
Here, 8 is greater than 5
∴ 308 is rounded off to 310
(Q3) 5616
Solution:
We have to rounded off 5616 to nearest ten.
Here 6 is greater than 5
∴ 5616 is round off to 5620
(Q4) 8427
Solution:
We have to rounded of 8427 to nearest ten.
Here, 7 is greater than 5.
∴ 8427 is rounded off 8430
(Q5) 45423
Solution:
We have to rounded off 45423 to nearest ten.
Here, 3 is less than 5
∴ 45423 is rounded off to 45420
From Q6 to Q10 round off the following numbers to nearest hundred:
(Q6) 876
Solution:
Here, we have to rounded off 876 to nearest hundred
∴ 876 is rounded off to 900
(Q7) 486
Solution:
Here, we have to rounded off 486 to nearest hundred.
Here, 8 is greater than 5
∴ 486 is rounded off to 500.
(Q8) 4524
Solution:
Here, we have to rounded off 4524 to nearest.
Here, 2 is less than 5
∴ 4524 is rounded off to 4500.
(Q9) 30248
Solution:
Here, we have to rounded off 30,248 to nearest hundred.
Here 4 is less than 5.
∴ 30248 is rounded off to 30200.
(Q10) 60648
Solution:
Here, we have to rounded off 60,648 to nearest hundred.
Here, 4 is less than 5
∴ 60,648 is rounded 60,600.
From Q11 to Q15 round off the following numbers to nearest thousand:
(Q11) 6980
Solution:
Here, we have to rounded off 6980 to nearest thousand.
∴ 9 is greater than 5
∴ 6980 is rounded off to 7000.
(Q12) 5682
Solution:
Here, we have to rounded off 56820 to nearest thousand.
Here 8 is greater than 5.
∴ 56820 is rounded off to 57000.
(Q13) 48920
Solution:
Here, we have to rounded off 48920 to nearest thousand.
∴ 9 is greater than 5
∴ 48920 is rounded off to 49,000
(Q14) 94620
Solution:
Here, we have to rounded of 94620 to nearest thousand.
∴ 94620 is rounded off to 95000.
(Q15) 9375
Solution:
Here, we have to rounded off 9375 to nearest thousand.
Here, 3 is less than 5
∴ 9375 is rounded off 9000.
(Q16) Length of shark is 58m. Find approximate length of shark rounded off nearest ten?
Solution:
Given that length of shark is 58m.
We have to rounded off to nearest ten
8 is greater than 5
∴ 58m rounded to 60m
(Q17) Length of running track is 286m. Find it’s approximate length of running track rounded off to nearest hundred?
Solution:
Given that, length of running track is 286m.
We have to rounded off to nearest hundred.
∴ 8 is greater than 5.
∴ 286m rounded off to 300m.
(Q18) Rahul earns Rs 46460 in a month. Rounded off this income to nearest thousand?
Solution:
Rahul earns Rs 46460, we have to rounded off to nearest thousand.
Here, 4 is less than 5.
∴ Rs 46460 is rounded off to 46000
(Q19) Population of a village is 24326. Rounded off the population of village to nearest hundred?
Solution:
Given that, population of village is 24326. We have to rounded off it to nearest hundred.
Here 2 is less than 5.
∴ 24326 population rounded off to 24300
(Q20) The cost price of refrigerator is Rs 55659. Find the estimated value if it is rounded off to nearest hundred?
Solution:
Given that the cost price of refrigerator is Rs 55659. We have to rounded off to nearest hundred.
∴ Here, Rs 55659 is rounded off to Rs 55700.
(Q21) Rounded off 22346 to nearest thousand.
Solution:
Here, we have to rounded of 22346 to nearest thousand.
Here, 3 is less than 5.
∴ 22346 is rounded off to 22000
(Q22) Rounded off 98624 to nearest hundred.
Solution:
Here, we have to rounded off 98624 to nearest hundred.
2 is less than 5
∴ 98624 is rounded off to 98600
(Q23) Rounded off 4829 to nearest tens.
Solution:
We have to rounded off 4829 to nearest tens.
Here, 9 is greater than 5.
∴ 4829 is rounded off to 4830
(Q24) Rahul drinks 1560ml milk daily, round off this value to nearest hundred.
Solution:
Rahul drinks 1560ml milk daily. We have to rounded off this value to nearest hundred.
6 is greater than 5.
1560ml rounded off as 1600ml.
(Q25) A garden is 536m long. Rounded off this garden length to nearest hundred?
Solution:
Garden is 536m long.
We have to rounded off to nearest hundred.
∴ 3 is less than 5
∴ 536m rounded off to 500m.