Revision ch- Know Your Numbers
Date: 29/7/21
Practice Sums:
1) Write the smallest three digit number whose value does not change on reversing its digits.
2) Write the greatest three digit number which does not change on reversing its digits.
3) What must be added to 203 to get a number whose digits are reversed of the given number?
4) Write the following in Roman numerals:
(a) 72
(b) 385) Write 438 in its expanded form.
6) Write the greatest five-digit number using the digits 4, 2 and 0.
7) The capacity of a water tank is 300 litres. Express its capacity in millilitres.
8) What is the successor of greatest 6-digit number?
9) What is the place value of 7 in 1743?
10) Of 7,12,540 and 71,25,400 which number is greater and by how much?
11) Write the smallest and the greatest 5-digit numbers using the digits 0,2,4,6,8 (Repetition of digits is not allowed).
12) Write the following numbers in ascending order. How many of them are even numbers?
63,854, 63,584, 65,348, 68,543, 64,835.13) Round the given numbers to the nearest tens.
(a) 48(b) 59
(c) 64
(d) 215
14) Estimate the following products:
(а) 86 x 316(b) 898 x 786
Date: 30/7/21
Practice Sums:
1) Divide 2,63,175 by 275.
2) Estimate: 25,148 + 7394 + 9343 + 752
3) A student multiplied 3759 by 231 instead of multiplying by 213. How much was his product greater than the correct product?
4) Estimate: 25,148 + 7394 + 9343 + 752
5) Write all the even numbers between 90 and 100 in Roman Numerals.
