7th math test term 1
1 Find the product using suitable property. a) 26 x(48) + (48)x (-36) b) (-41) x 102 2 A stationery shopkeeper sells 25 pencils and gains 1 on each pencil. By selling 12 notebooks, he loses 0.75 per notebook. What is his gain or loss? 3 a Write the difference between the smallest positive integer and the greatest negative integer. b) Add additive inverse of 5 and additive inverse of (-3) 4 Verify that a + (b + c) = (a + b) + (a+c) for a = (-10), b = 1, c = 1. 5 Ravi earns 4500 per day and in 6 days? spends 700 per day. How much money he will save 6. Verify: a- (-b) = a + b for a = 113, b=207 7 Cost of 2 dozen bananas is is 24. What is the cost of 12 banana? 8 Vinit has 36 rupees. He wants to purchase potatoes. The cost of potatoes is 20 per kg. How much potatoes Vinit can buy? 9 Rupa has 506 rupee. She wants to distribute it equally among 45 people. How much money each person will get 10. Identify the rational numbers. a -23 /34 b...