© 2009 -2011 tutorco.com 1 Q1) Round the numbers to the nearest 10 (i) 47 _____ (ii) 43 _____ (iii) 51 _____ (iv) 99 _____ (v) 24 _____ (vi) 56 _____ (vii) 16 _____ (viii) 65 _____ (ix) 86 _____ (x) 94 _____ Q2) Round to the nearest hundred: i) 847 _________ ii) 2 978 _________ iii) 5 048 _________ iv) 333 _________ v) 5 496 ________ vi) 555 _________ GRADE 4 TOPIC: NUMBER SYSTEM 4/1/4/S © 2009 -2011 tutorco.com 2 Q3) Round to the nearest thousand (i) 1,476 (ii) 2287 (iii) 4,678 (iv) 9,765 (v) 10,543 Q4) All the numbers are rounded to the nearest ten. Fill in the missing digit to make the statement true. (i) 9 rounds to 100 (ii) 6 rounds to 60 (iii) 6 rounds to 70 (iv) 8 rounds to 80 (v) 1 rounds to 20 © 2009 -2011 tutorco.com 3 Q5) Please round the numbers to the nearest dollar (i) $239.57 (ii) $37.80 (iii) $186.68 (iv) $8.99 (v) $9.46 Q6) Please round the numbers to the nearest underlined digit (i) 5,218 (ii) 6,804 (iii) 8,154 (iv) 3,495 (v) 6,774,835 © 2009 -2011 tutorco.com 4 Q7) Estimate the sum by rounding each number to the nearest ten and then adding. 96 + 36 Q8) Estimate the sum by rounding each number to the nearest hundred and then adding. 84 + 197 Q9) Estimate the sum by rounding each number to the nearest ten and then adding. 82 + 47 Q10) Estimate the sum by rounding each number to the nearest hundred And then subtracting 527−465 © 2009 -2011 tutorco.com 5 Q11) Round to the nearest ten i) 407 _____ ii) 432 ____ iii) 677 _____ iv) 291 _____ v) 11 1 _____ Q12) Round to the nearest thousand: i) 14 389 _________ ii) 29 610 _________ iii) 3 492 _________ iv) 9 520 _________ v) 56 239 ________ vi) 89 743 _________ © 2009 -2011 tutorco.com 6 Q13) Round to the nearest ten thousand: i) 24 987 _________ ii) 37 096 _________ iii) 145 302 _________ iv) 24 033 _________ v) 295 474 _________ vi) 77 330 _________ Q14) Each number is rounded to the nearest ten. Fill in the missing digit to make the statement true. (i) 3, 46 rounds to 3,460 (ii) 2, 15 rounds to 2,150 (iii) 5, 2 4 rounds to 5,260 (iv) 6, 1 5 rounds to 6,190 (v) 1, 28 rounds to 1,280 © 2009 -2011 tutorco.com 7 Q15) Please round the numbers to the nearest dollar (i) $650.24 (ii) $181.55 (iii) $940.16 (iv) $131.69 (v) $342.51 Q16) Please round the numbers to the nearest underlined digit (i) 566,534 (ii) 562,973,632 (iii) 33,379 (iv) 41, 592, 22 (v) 84,536,254 © 2009 -2011 tutorco.com 8 Q17) Estimate the sum by rounding each number to the nearest hundred and then adding. 698 + 847 Q18) Estimate the sum by rounding each number to the nearest hundred and then adding. 678 + 719 Q19) Round to the nearest tenth: i) 8947 _________ ii) 3.978 _________ iii) 9.048 _________ iv) 3.33 _________ v) 54.96 _________ vi) 55.56 _________ © 2009 -2011 tutorco.com 9 Q20) Round to the nearest hundredth: i) 99.689 _________ ii) 13.232 _________ iii) 6.5123 _________ iv) 755.300 _________ v) 222.678 _________ vi) 499.987 _________ © 2009 -2011 tutorco.com 10 Q21) Round to the nearest ten: i) 89 _________ ii) 2 673 ________ iii) 265 _________ iv) 514 _________ v) 97 _________ vi) 2 753 _________ Q22) Round to the nearest hundred thousand: i) 929 689 _________ ii) 103 232 _________ iii) 965 123 _________ iv) 754 300 _________ v) 222 678 _________ vi) 449 987 _________ Q23) Round to the nearest tenth: i) 12.642 _________ ii) 29.10 _________ iii) 2.492 _________ iv) 3.44 _________ v) 5.239 _________ vi) 89.43 _________ © 2009 -2011 tutorco.com 11 Q24) Round to the nearest hundredth: i) 23.987 _________ ii) 3.7096 _________ iii) 4.449 _________ iv) 44.043 _________ v) 999.474 _________ vi) 7.44430 _________ Q25) Round to the nearest thousandth: i) 0.99989 _________ ii) 0.2673 _________ iii) 0.3265 _________ iv) 66.514 _________ v) .2297 _________ vi) 3.2753 _________ Q26) Each number is rounded to the nearest ten. Fill in the missing digit to make the statement true. (i) 30, 95 rounds to 30,700 (ii) 74, 44 rounds to 74,040 (iii) 45, 76 rounds to 45,980 (iv) 67, 84 rounds to 67,580 (v) 1, 609, 0 4 rounds to 1,609,010 © 2009 -2011 tutorco.com 12 Q27) Please round the numbers to the nearest dollar (i) $9,879.83 (ii) $9,959.64 (iii) $2,163.31 (iv) $8,187.08 (v) $6,260.50 Q28) Please round the numbers to the nearest underlined digit (i) 516.445 (ii) 302.623635 (iii) 79.484906 (iv) 30.62355 (v) 3.38281 © 2009 -2011 tutorco.com 13 Q29) Estimate the sum by rounding each number to the nearest thousand and then adding. 2,861 + 2,347 Q30) A fiction book contains 839,778 lowercase letters and 545,374 capital letters. Estimate how many letters are there in all?