BIDMAS (Order of Operations) Week 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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B I D M A S | Brackets
Indicies
Division
Multiplication
Addition
Subtraction
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3 х 6 + 7 = | 18 + 7 = 25
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7 + 3 х 6 | 7 + 18 = 25 (do the multiplication first)
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7 + 5 + 4 х 9 | 12 + 36 = 48 (you must do the multiplication first)
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67 – 5 х 12 + 4 | 67 - 60 + 4 = 7 + 4 = 11 (do the multiplication first)
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45 – 2 х 12 + 4 | 45 - 24 + 4 = 21 + 4 = 25 (do the multiplication first)
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48÷6+9÷3 | 8 + 3 = 11 (do the divisions first)
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42÷7+7×4 | 6 + 28 = 34 (do the division and the multiplication first)
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(42+9)÷(7-4) | 51 ÷ 3 = 17 (do the calculations that are in the brackets first)
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(41-5)÷(12-3) | 36 ÷ 9 = 4
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41-72÷(12-3) | 41 - 72 ÷ 9 = 41 - 8 = 33 (do the calculation in the bracket first, then the division)
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33-7×(11-8) | 33 - 7 × 3 = 33 - 21 = 12 (do the calculation in the bracket first, then the multiplication)
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(33-7)×(11-8) | 26 × 3 = 78
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106 - 5 × 9 - 2 | 106 - 45 - 2 = 59
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19-3 × (9-5) + 22 ÷ 11 | 19 - 3 × 4 + 2 = 7 = 19 - 12 + 2 = 9
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
HilaryForbes
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