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Choose all expressions that are equal to 28.3.

27+ 0.91 + 0.39
0.01 + 28.02
9.9 + 9.8 + 9.6
0.02 + 28 + 0.28
27.3 + 1

1 answer

Let's evaluate each expression to see if it equals 28.3.

  1. 27 + 0.91 + 0.39

    • Calculating:
    • \( 27 + 0.91 = 27.91 \)
    • \( 27.91 + 0.39 = 28.3 \)
    • This expression equals 28.3.

  2. 0.01 + 28.02

    • Calculating:
    • \( 0.01 + 28.02 = 28.03 \)
    • This expression does not equal 28.3.

  3. 9.9 + 9.8 + 9.6

    • Calculating:
    • \( 9.9 + 9.8 = 19.7 \)
    • \( 19.7 + 9.6 = 29.3 \)
    • This expression does not equal 28.3.

  4. 0.02 + 28 + 0.28

    • Calculating:
    • \( 0.02 + 28 = 28.02 \)
    • \( 28.02 + 0.28 = 28.3 \)
    • This expression equals 28.3.

  5. 27.3 + 1

    • Calculating:
    • \( 27.3 + 1 = 28.3 \)
    • This expression equals 28.3.

Based on the evaluations, the expressions that are equal to 28.3 are:

  • 27 + 0.91 + 0.39
  • 0.02 + 28 + 0.28
  • 27.3 + 1