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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CRITICAL THINKING 1. To know who has more marbles without counting again, you compare the numbers. Step 1: Compare 145 and 150. 150 > 145 Your friend has more marbles because 150 is a larger number than 145. Answer: Your friend has more marbles. 2. To skip count by 5 starting from 95 until 150, you add 5 repeatedly. Step 1: Start at 95 and add 5. 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150 Answer: You will say 150. 3. To compare 198 and 189 using place value, look at the digits from left to right. Step 1: Compare the hundreds place. Both numbers have 1 in the hundreds place. Step 2: Compare the tens place. 198 has 9 in the tens place, and 189 has 8 in the tens place. Since 9 > 8, 198 is greater. Answer: 198 is greater. In the tens place, 9 is greater than 8. 4. To make the biggest number using digits 7, 5, 8 without repeating, arrange them in descending order. Step 1: Arrange the digits from largest to smallest. 8, 7, 5 Step 2: Form the number. 875 Answer: The biggest number is 875. PROBLEM SOLVING 1. To find how many pencils are left, subtract the used pencils from the total. Step 1: Subtract 30 from 150. 150 - 30 = 120 Answer: 120 pencils are left. 2. To find how many stickers Riya has now, add the new stickers to her original amount. Step 1: Add 75 to 170. 170 + 75 = 245 Answer: Riya has 245 stickers now. 3. To find the total number of pages Rohan read, add the pages he read initially and the additional pages. Step 1: Add 35 to 155. 155 + 35 = 190 Answer: Rohan read a total of 190 pages. 4. To find how many balloons are still left, subtract the burst balloons from the total. Step 1: Subtract 55 from 185. 185 - 55 = 130 Answer: 130 balloons are still left. LOGICAL REASONING 1. Fill the missing number. a) Step 1: Subtract 425 from 700. 700 - 425 = 275 Answer: 425 + 275 = 700 b) Step 1: To get 700 from 700, you must subtract 0. 700 - 0 = 700 Answer: 700 - 0 = 700 c) Step 1: Add 1 to 899. 899 + 1 = 900 Answer: 899 + 1 = 900 d) Step 1: Subtract 999 from 1000. 1000 - 999 = 1 Answer: 999 + 1 = 1000 2. Which number is greater after addition? a) Step 1: Add 320 and 150. 320 + 150 = 470 b) Step 2: Add 280 and 210. 280 + 210 = 490 Step 3: Compare the sums. 490 > 470 Answer: b) 280 + 210 is greater. 3. If you add 250 and 250, will the answer be more or less than 600? Step 1: Add 250 and 250. 250 + 250 = 500 Step 2: Compare the sum to 600. 500 < 600 Answer: The answer will be less than 600. 4. Aman added 340+220 and got 650. Is he correct? If not find the correct answer. Step 1: Add 340 and 220. 340 + 220 = 560 Step 2: Compare Aman's answer to the correct sum. 650 ≠ 560 Answer: Aman is incorrect. The correct answer is 560. Send me the next one 📸