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Write the next three natural numbers after 10999.
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Write the three whole numbers occurring just before 10001.
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Which is the smallest whole number?
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How many whole numbers are there between 32 and 53?
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Write the successor of (a) 2440701 (b) 100199 (c) 1099999 (d) 2345670
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Write the predecessor of (a) 94 (b) 10000 (c) 208090 (d) 7654321
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In each of the following pairs of numbers, state which whole number is on the left on the other number on the number line. Also, write them with the appropriate sign (>, <) between them. (a) 530, 503 (b) 370, 307 (c) 98765, 56789 (d) 9830415, 10023001 TIPS The smaller number is to the left of bigger number on the number line and the bigger number is to the right of smaller number on the number line.
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Which of the following statements are true (T) and which are false (F)? (a) Zero is the smallest natural number. (b) 400 is the predecessor of 399. (c) Zero is the smallest whole number. (d) 600 is the successor of 599. (e) All natural numbers are whole numbers. (f) All whole numbers are natural numbers. (g) The predecessor of a two digit number is never a single digit number. (h) 1 is the smallest whole number. (i) The natural number 1 has no predecessor. (j) The whole number 1 has no predecessor. (k) The whole number 13 lies between 11 and 12. (I) The whole number 0 has no predecessor. (m) The successor of a two digit number is always a two digit number.
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Find the sum by suitable rearrangement. (a) 837 + 208 + 363 (b) 1962 + 453 + 1538 + 647 TIPS Sum of three or more than three whole numbers remains same on changing the grouping of the numbers and we group the numbers for convenience of adding. This property is known as associativity of addition for whole numbers.
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Find the product by suitable rearrangement. (a) 2 x 1768 x 50 (b) 4 x 166 x 25 (c) 8 x 291 x 125 (d) 625 x 279 x 16 (e) 285 x 5 x 60 (f) 125 x 40 x 8 x 25 TIPS First, we multiply those two numbers, which can give us zero (0) like 100, 1000 etc. Because, to multiply any number with these numbers is simple.
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Find the value of the following. (a) 297 x 17 + 297 x 3 (b) 54279 x 92 + 8 x 54279 (c) 81265 x 169 ? 81265 x 69 (d) 3845 x 5 x 782 + 769 x 25 x 218
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Find the product using suitable properties. (a) 738 x 103 (b) 854 x 102 (c) 258 x 1008 (d) 1005 x 168
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A taxidriver filled his car petrol tank with 40 litres of petrol on Monday. The next day, he filled the tank with 50 litres of petrol. If the petrol costs. Rs. 44 per litre, how much did he spend in all on petrol?
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A vendor supplies 32 litres of milk to a hotel in the morning and 68 litres of milk in the evening. If the milk costs. Rs. 15 per litre, how much money is due to the vendor per day?
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Match the following.
(i) 425 x 136 = 425 x (6 + 30 + 100) (a) Commutativity under multiplication (ii) 2 x 49 x 50 = 2 x 50 x 49 (b) Commutativity under addition (iii) 80 + 2005 + 20 = 80 + 20 + 2005 (c) Distributivity of multiplication over addition
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Which of the following will not represent zero? (a) 1 + 0 (b) 0 x 0 (c) \[\frac{0}{2}\] (d)\[\frac{10-10}{2}\]
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If the product of two whole numbers is zero, can we say that one or both of them will be zero? Justify through examples.
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If the product of two whole numbers is 1, can we say that one or both of them will be 1? Justify through examples.
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Find using distributive property. (a) 728 x 101 (b) 5437 x 1001 (c) 824 x 25 (d) 4275 x 125 (e) 504 x 35
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Study the pattern. 1 x 8 + 1 = 9 1234 x 8 + 4 = 9876 12 x 8 + 2 = 98 12345 x 8 + 5 = 98765 123 x 8 + 3 = 987 Write the next two steps. Can you say how the pattern works? (Hint 12345 = 11111 + 1111 + 111 + 11 + 1)
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