Order of Operations 4

Directions: Use the digits 0 to 9, only once, to make the inequality true.

Hint

What are steps in the order of operations?

Answer

20 greater than or equal to 3 + (5-2) x 4, many more answers

Source: Laura Wagenman

Check Also

Add Fractions with Decimal Sums

Directions: Using the digits 1 to 9 at most one time each, place a digit …

15 comments

  1. 20 is greater than or equal to 3+(5-2) x 4,
    There are other answers as well

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  5. 20 > 4 + ( 3 – 2 ) x 5

  6. 20 > 5 + ( 4 – 3 ) x 6

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  11. 3 + (5-2) x 4

  12. 20 is greater than or equal to 2 + (9 – 7) x 5

  13. Rudolf Österreicher

    (1,028 solutions where the expression is greater than 20)

    3,962 solutions where the expression is smaller than 20
    50 solutions where the expression is equal to 20.
    4,012 solutions where 20 >= expression.

    If we only allow non-negative solutions:
    2,104 solutions where 20 > expression > 0
    2,154 solutions where 20 >= expression > 0:

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    9+(3-2)*7
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    9+(3-4)*1
    9+(3-4)*2
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    9+(3-5)*0
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    9+(5-7)*3
    9+(5-7)*4
    9+(5-8)*0
    9+(5-8)*1
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    9+(6-0)*1
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    9+(6-1)*2
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    9+(6-2)*1
    9+(6-3)*0
    9+(6-3)*1
    9+(6-3)*2
    9+(6-4)*0
    9+(6-4)*1
    9+(6-4)*2
    9+(6-4)*3
    9+(6-4)*5
    9+(6-5)*0
    9+(6-5)*1
    9+(6-5)*2
    9+(6-5)*3
    9+(6-5)*4
    9+(6-5)*7
    9+(6-5)*8
    9+(6-7)*0
    9+(6-7)*1
    9+(6-7)*2
    9+(6-7)*3
    9+(6-7)*4
    9+(6-7)*5
    9+(6-7)*8
    9+(6-8)*0
    9+(6-8)*1
    9+(6-8)*2
    9+(6-8)*3
    9+(6-8)*4
    9+(7-0)*1
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    9+(7-2)*0
    9+(7-2)*1
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    9+(7-3)*1
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    9+(7-5)*1
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    9+(7-5)*3
    9+(7-5)*4
    9+(7-6)*0
    9+(7-6)*1
    9+(7-6)*2
    9+(7-6)*3
    9+(7-6)*4
    9+(7-6)*5
    9+(7-6)*8
    9+(7-8)*0
    9+(7-8)*1
    9+(7-8)*2
    9+(7-8)*3
    9+(7-8)*4
    9+(7-8)*5
    9+(7-8)*6
    9+(8-0)*1
    9+(8-1)*0
    9+(8-2)*0
    9+(8-2)*1
    9+(8-3)*0
    9+(8-3)*1
    9+(8-3)*2
    9+(8-4)*0
    9+(8-4)*1
    9+(8-4)*2
    9+(8-5)*0
    9+(8-5)*1
    9+(8-5)*2
    9+(8-5)*3
    9+(8-6)*0
    9+(8-6)*1
    9+(8-6)*2
    9+(8-6)*3
    9+(8-6)*4
    9+(8-6)*5
    9+(8-7)*0
    9+(8-7)*1
    9+(8-7)*2
    9+(8-7)*3
    9+(8-7)*4
    9+(8-7)*5
    9+(8-7)*6

    2,110 of these are greater than 0. Lowest possible result is 1+(0-8)*9 =1-72=-71 if we allow negative numbers.

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