This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
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here are the solutions for the math problems: 28. How much money does Ishare have? If he spends (2)/(5) of his money, how much does he remain with? This question is incomplete as the initial amount of money Ishare has is not provided. To calculate how much money he remains with, we need to know the total amount he started with. 29. Use quick multiplication methods to calculate the following: a) 40 × 99 Step 1: Rewrite 99 as (100 - 1). 40 × 99 = 40 × (100 - 1) Step 2: Apply the distributive property. 40 × 100 - 40 × 1 = 4000 - 40 Step 3: Perform the subtraction. 4000 - 40 = 3960 The product is 3960. b) 400 × 100 Step 1: Multiply the non-zero digits. 4 × 1 = 4 Step 2: Count the total number of zeros in both numbers (two in 400 and two in 100) and append them to the product. 400 × 100 = 40000 The product is 40000. c) 60 × 11 Step 1: Rewrite 11 as (10 + 1). 60 × 11 = 60 × (10 + 1) Step 2: Apply the distributive property. 60 × 10 + 60 × 1 = 600 + 60 Step 3: Perform the addition. 600 + 60 = 660 The product is 660. d) 380 × 95 Step 1: Rewrite 95 as (100 - 5). 380 × 95 = 380 × (100 - 5) Step 2: Apply the distributive property. 380 × 100 - 380 × 5 = 38000 - 1900 Step 3: Perform the subtraction. 38000 - 1900 = 36100 The product is 36100. e) 478 × 9 Step 1: Rewrite 9 as (10 - 1). 478 × 9 = 478 × (10 - 1) Step 2: Apply the distributive property. 478 × 10 - 478 × 1 = 4780 - 478 Step 3: Perform the subtraction. 4780 - 478 = 4302 The product is 4302. 30. How many times does 0.01 go into 4.8? Step 1: Set up the division problem. (4.8)/(0.01) Step 2: To eliminate the decimal in the divisor, multiply both the numerator and the denominator by 100. (4.8 × 100)/(0.01 × 100) = (480)/(1) Step 3: Perform the division. (480)/(1) = 480 0.01 goes into 4.8 exactly 480 times. 31. In the table below are marks obtained in mathematics test by children of P5 group. The question related to this table is incomplete. The table shows: | Marks | 7 | 20 | 15 | 9 | 12 | |---|---|---|---|---|---| | Frequency | 8 | 5 | 8 | 8 | 8 | Please provide the full question for this section, and I'll be happy to help you solve it!