High School

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1. Solve the following:
1. 13 - 12 + 8 + 2 × 16
3. 19 × 16 + 4 + 7 - 1

2. 12 ÷ 6 × 15 - 6 + 14
4. 15 ÷ 3 × 2 × 19 - 9

2. Solve the following word problems:
1. Jisha found 928 seashells on the beach and she gave 535 of them away. How many seashells does she have now?
2. A pastry shop sold 215 cupcakes every day for a week. How many cupcakes were sold during the week?

Answer :

Let's solve each part step-by-step:

1. Arithmetic Expressions:

  1. Expression 1: [tex]13 - 12 + 8 + 2 \times 16[/tex]

    • First, evaluate the multiplication: [tex]2 \times 16 = 32[/tex]
    • Then perform the operations from left to right:
      [tex]13 - 12 = 1[/tex]
      [tex]1 + 8 = 9[/tex]
      [tex]9 + 32 = 41[/tex]
    • So, the result is [tex]41[/tex].

  2. Expression 2: [tex]19 \times 16 + 4 + 7 - 1[/tex]

    • First, evaluate the multiplication: [tex]19 \times 16 = 304[/tex]
    • Perform the operations from left to right:
      [tex]304 + 4 = 308[/tex]
      [tex]308 + 7 = 315[/tex]
      [tex]315 - 1 = 314[/tex]
    • So, the result is [tex]314[/tex].

  3. Expression 3: [tex]12 \div 6 \times 15 - 6 + 14[/tex]

    • First, divide and multiply:
      [tex]12 \div 6 = 2[/tex]
      [tex]2 \times 15 = 30[/tex]
    • Then perform the operations:
      [tex]30 - 6 = 24[/tex]
      [tex]24 + 14 = 38[/tex]
    • So, the result is [tex]38[/tex].

  4. Expression 4: [tex]15 \div 3 \times 2 \times 19 - 92[/tex]

    • First, perform the division and multiplication:
      [tex]15 \div 3 = 5[/tex]
      [tex]5 \times 2 = 10[/tex]
      [tex]10 \times 19 = 190[/tex]
    • Then subtract:
      [tex]190 - 92 = 98[/tex]
    • So, the result is [tex]98[/tex].

2. Word Problems:

  1. Seashells Problem:

    • Jisha had 928 seashells and gave away 535.
    • To find out how many she has left, subtract the given away seashells from the total:
      [tex]928 - 535 = 393[/tex]
    • So, Jisha has 393 seashells now.

  2. Cupcakes Problem:

    • The pastry shop sold 215 cupcakes every day for a week.
    • There are 7 days in a week, so multiply the daily cupcakes by 7:
      [tex]215 \times 7 = 1505[/tex]
    • So, the shop sold 1505 cupcakes during the week.

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Rewritten by : Barada