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Fill in the blanks for the following expressions to match the original expression: a) 500 - 100 + 4 x 25 - 20 b) 300 - 50 + 2 x 60

Mathematics

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Step-by-step solution

5 steps

Here are the filled blanks for question 3:

Part a· 1 step

  1. Fill in the blanks by matching the terms in the original expression.

    500−100+4×25−20=500+−100+4×25−20500 - 100 + 4 \times 25 - 20 = 500 + \boxed{\mathbf{-100}} + 4 \times \boxed{\mathbf{25}} - \boxed{\mathbf{20}}

Part b· 1 step

  1. Fill in the blanks by matching the terms in the original expression.

    300−50+2×60=300+−50+2×60300 - 50 + 2 \times 60 = 300 + \boxed{\mathbf{-50}} + 2 \times \boxed{\mathbf{60}}

Part c· 1 step

  1. Fill in the blanks by matching the terms in the original expression.

    450−120+3×30−30=450+−120+3×30+−30450 - 120 + 3 \times 30 - 30 = 450 + \boxed{\mathbf{-120}} + 3 \times \boxed{\mathbf{30}} + \boxed{\mathbf{-30}}

Part d· 1 step

  1. Fill in the blanks by matching the terms in the original expression.

    250−80+10÷2=250+−80+10÷2250 - 80 + 10 \div 2 = 250 + \boxed{\mathbf{-80}} + 10 \div \boxed{\mathbf{2}}

Part e· 1 step

  1. Fill in the blanks by matching the terms in the original expression.

    600−150−50+5×20=600+−150+−50+5×20600 - 150 - 50 + 5 \times 20 = 600 + \boxed{\mathbf{-150}} + \boxed{\mathbf{-50}} + 5 \times \boxed{\mathbf{20}}
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