Www.boommaths.com KS3 Matching Activity. www.boommaths.com Match the cards into groups of 3 There are 101 spots on two Dalmatian dogs. One Dalmatian has.

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Presentation transcript:

KS3 Matching Activity

Match the cards into groups of 3 There are 101 spots on two Dalmatian dogs. One Dalmatian has 25 spots more than the other, how many spots does each dog have? 38 spots 63 spots

There are 105 spots on two Dalmatian dogs. One Dalmatian has 59 spots more than the other, how many spots does each dog have? 20 spots 74 Spots There are 103 spots on two Dalmatian dogs. One Dalmatian has 45 spots more than the other, how many spots does each dog have? 19 spots91 Spots There are 101 spots on two Dalmatian dogs. One Dalmatian has 41 spots more than the other, how many spots does each dog have? 21 spots 85 Spots There are 107 spots on two Dalmatian dogs. One Dalmatian has 63 spots more than the other, how many spots does each dog have? 29 spots94 Spots

There are 113 spots on two Dalmatian dogs. One Dalmatian has 75 spots more than the other, how many spots does each dog have? 23 spots 88 Spots There are 111 spots on two Dalmatian dogs. One Dalmatian has 71 spots more than the other, how many spots does each dog have? 30 spots 97 Spots There are 109 spots on two Dalmatian dogs. One Dalmatian has 67 spots more than the other, how many spots does each dog have? 22 spots 82 Spots There are 115 spots on two Dalmatian dogs. One Dalmatian has 79 spots more than the other, how many spots does each dog have? 18 spots 71 Spots

There are 101 spots on two Dalmatian dogs. One Dalmatian has 41 spots more than the other, how many spots does each dog have? 30 spots 71 Spots There are 103 spots on two Dalmatian dogs. One Dalmatian has 45 spots more than the other, how many spots does each dog have? 29 spots 74 Spots There are 105 spots on two Dalmatian dogs. One Dalmatian has 59 spots more than the other, how many spots does each dog have? 23 spots 82 Spots There are 107 spots on two Dalmatian dogs. One Dalmatian has 63 spots more than the other, how many spots does each dog have? 22 spots 85 Spots

There are 109 spots on two Dalmatian dogs. One Dalmatian has 67 spots more than the other, how many spots does each dog have? 21 spots 88 Spots There are 111 spots on two Dalmatian dogs. One Dalmatian has 71 spots more than the other, how many spots does each dog have? 20 spots 91 Spots There are 113 spots on two Dalmatian dogs. One Dalmatian has 75 spots more than the other, how many spots does each dog have? 19 spots 94 Spots There are 115 spots on two Dalmatian dogs. One Dalmatian has 79 spots more than the other, how many spots does each dog have? 18 spots 97 Spots

Use your mini whiteboards to answer the following questions Click here for infinite questions

Solution 1: Step 1: Draw a model Step 2: Use the diagram to calculate how many spots 101 – 25 = = the value of the yellow shaded blocks 76 ÷ 2 = 38 Therefore one dog has 38 spots = 63 Therefore dog two has 63 spots Back to beginning

Solution 2: Step 1: Construct an equation x + (x+25) = 101 Step 2: Solve for x (to find the number of spots on one dog) 2x + 25 = 101 2x = x = 76 x = 38 Therefore dog 1 has 38 spots Step 3: Calculate the number of spots on dog 2 dog 2 = x + 1 dog 2 = Therefore dog 2 has 63 spots Back to beginning