Question

Whole Number [Date 23-08-2021 (Total marks- 18)]

Q1. State the property represented by the following: (1⁄2 mark)
a. 3452 + 1234 = 1234 + 3452
b. (234 + 124) + 785 = 234 + (124 + 785)
c. 345 + 0 = 345

d. (34 x 99) x 78 = 34 x (99 x 78)
e. 235 x 1 = 235
f. 12 x (100 – 2) = 12 x 100 – 12 x 2

Q2. Solve the following using distributive property: (1 mark each)
a. 753 x 2 + 753 x 98
b. 145 x 161 – 145 X 61

c. 1001 x 56
d. 5678 × 92 + 5678 × 7 + 5678

Q3. Solve using suitable arrangement by correct property method (1⁄2 mark)
a. 877 + 458 + 123 + 542
b. 205 + 833 + 495 + 167
c. 4 x 234 x 25
d. 2 x 125 x 50 x 8
e. 164 x 98

f. 345 X101
g. 75 x 98
h. 98 x 46
i. 102 x 78
j. 198 x 212

Q4. Rearrange and evaluate: (1 mark each)
a. 20 x 125 x 50 × 8
b. 25×1605×40

Q5. If 35 + 65 = 100, what can be 65 + 35? Mention the property of whole numbers used here.
(1⁄2 mark)
Q6. 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?

a. Write a numerical expression for the given statement.
b. Which property of whole numbers would you use to form a numerical expression for
the given statement?
c. How much money he gets per day for the supply? (1.5 marks)

Q7. 25 sets containing pencil and ruler are made. The cost of each pencil is Rs.2 and that of ruler
is Rs. 8. Using the property of whole numbers find, what is the cost of 25 sets. Mention the
property applied. (2 marks)

Answer 1

Answer:

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Step-by-step explanation:

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