(a) ____ x 13 = 13 x 18
(b) Whole numbers are closed under _______ and ________ operation.
(c) Division by ______ is not defined.
(d) _______ is the identity for multiplication.
(e) If ______ is added to a number, the sum will remain the same. Hence ______is called the __________ in the whole numbers.
Question 1:
Question 2:
Ques 3: Seema got 99 marks in Math, 69 marks in English, and 91 in Science. Another student Rita got 92 marks in Math, 33 in English and 84 in Science. What are their total marks?
Ques 4: Ramesh ordered 10 cartons of chocolates to distribute among the class. Each carton holds 20 boxes and each box has 12 chocolates. How many chocolates did Ramesh order altogether?
Ques 5: Mukesh lives form a hostel which charges Rs 55 for Dinner and 45 for Lunch. Find the money he has to pay for seven days.
Ques 6: Find the sum by suitable rearrangement:
(a) 837 + 208 + 363
(b) 1962 + 453 + 1538 + 647
Ques 7: 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
Ques 8: A taxi driver 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?
Ques 9: 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?
Ques 10: If the product of two whole numbers is zero, can we say that one or both of them will be zero? Justify through examples.
Ques 11: If the product of two whole numbers is 1, can we say that one of both of them will be 1? Justify through examples.
Ques 12: How many whole numbers are there between 32 and 53?
Ques 13: In each of the following pairs of numbers, state which whole number is on the left of 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
Ques 14: Solve the following using distributive property.
(a) 234 x 13 + 234 x 7
(b) 405 + 405 x 29
(c) 3845 x 5 x 782 + 769 x 25 x 218
Ques 15: Write 5 successive numbers just after 4023.
Ques 16: Write the smallest and largest 6 digit whole number.
Ques 17: Write the smallest natural and smallest whole number.
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