The order of the sum is wrong. By using the Associative Property of Addition property we can find the missing number. Number of votes candidate A receives = 347 Take 10 × 10 block You travel 155 miles in the morning and 59 miles in the afternoon. Write an equation that shows the Commutative Property of Addition. Practice the questions a number of times to understand the concepts in depth. Newton buys a chicken wrap for $2 and a drink for $1 each game. Answer: Thus the seats are enough for all of the students and teachers. 982 Start at 796. Use the multiplication table. Use compensation to change both numbers. 279 Multiply the two numbers 10 and 4. 550 – 333 = 217 So, the answer is reasonable. 700 -362 849 Round each number to the nearest hundred. Use the inverse operation to check the solution The Big Ideas Math Book 3rd Grade Answer Key Chapter 8 Add and Subtract Multi-Digit Numbers helps you overcome the issues you face while solving the problems. Answer: 514 307 = 310 Round each addend to the nearest hundred. Step 2: Find the difference. 406 The manager of a gaming center has $700 for new electronics. Given that, 931 Question 1. 963 = 1000 913 Answer: One Way: Use the count on strategy. Step 1: Estimate. 23 + 45 = 45 + 23 Answer: 325 + 1 = 326 To find the total number of pins we have to the points in the first game and second game. A farmer sells 34 cucumbers, 48 ears of corn, and 26 bell peppers at a farmer’s market. What is the next step? -858 Answer: Step 2: Find the difference. 511, Answer: 594 = 600 It shows Addition Property of Zero. Find 846 – 283. 283 = 280 -349 Answer: 250 You add 602 + 125 + 231. 661 259 = 260 The estimated number for 220 is 200. The marching band has 123 members. 694 – 418 = ___. DIG DEEPER! So, the answer is reasonable. Use the count on strategy. 319 = 300 + 10 + 9 Step 2: Find the sum. Step 2: Find the sum, add the ones, then the tens, then the hundreds. Round each addend to the nearest ten. A smoothie shop sells 368 smoothies in July and 205 smoothies in August. The total number of students in your grade is 50. b. Answer: 265 + 265 + 265 + 186 = 981 Day 1 – 468 + 527 = 995 Thus the area of the shape is 21 sq. Step 2: Find the difference. 700 – 250 = ____ There are 459 girls and 552 boys in school. 401 There are 205 lawn tickets and 585 bleacher tickets sold for a concert. You hand out some of them. How can breaking apart addends help you add three-digit numbers? 278 = 200 + 70 + 8 DIG DEEPER! Which equations show the Commutative Property of Addition? Thus the missing number is 0. 261 = 300 Question 4. Question 4. Step 2: Find the sum, add the ones, then the tens, then the hundreds. a. c. How does your estimate compare to the actual number of students in your grade? 423 34 + 48 + 26 = 108 Because it is not using the inverse operation of addition and subtraction. Step 2: Find the difference. Use the Distributive Propertytofind the area of the rectangle. 23 + 45 = 45 + x 280 There are five 100 blocks and 4 blocks. 579 + 161 = 740 Add the ones, tens, then the hundreds. Round each addend to the nearest hundred. Use the inverse operation to check. -500 989 Modeling Real Life (a + b) + c = a + (b + c) 580, Explanation: So, the answer is reasonable. Can he bring all 3 boxes on the elevator at once? We can write the equation by using the Associative Property of Addition. Use compensation to change both numbers. BIM Grade 8 Answer Key is prepared by mathematical experts. 322 – 2 = 320 162 + 171 = 333 songs Sol: You bought 10 packs of sketches and your friend bought 4 packs less than you. A bristlecone pine tree has 806 rings. 429 = 400 2 × (3 × 5) = (2 × 3) × 5 So the answer is reasonable. Now is the time to redefine your true self using Slader’s Big Ideas Math Geometry: A Common Core Curriculum answers. Explanation: Subtraction equation: Now is the time to redefine your true self using Slader’s BIG IDEAS MATH Integrated Mathematics III answers. 225, Answer: How are addition and subtraction related? Answer: The estimated number for 835 is 800. Explain how you can check whether your answer above is reasonable. Does she have enough money left for either of the other two items? Step 2: Find the difference. The cost of the mobile is $249. 500 DIG DEEPER! Question 4. 193 more fish were caught on Sunday than on Friday and Saturday combined. 905 Answer:
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