54-f869-4fd8-afc7-225b75e30df8","cardType":"basic","front":"What does it mean when two variables touch, such as $jk$?","back":"They are multiplied together ($j \\times k$).","points":1},{"id":"2d3a5dac-c8ba-4cea-a1cc-256696d2af3e","cardType":"cloze","front":"In algebra, a [ ] is a letter that stands for a number.","back":"In algebra, a variable is a letter that stands for a number.","points":null},{"id":"92146d18-bb8c-4251-ac61-9acff583ea5f","cardType":"cloze","front":"In algebra, a variable is a letter that stands for a [ ].","back":"In algebra, a variable is a letter that stands for a number.","points":null},{"id":"1ea1af98-2374-404e-a680-2904db8c5fff","cardType":"basic","front":"What is the difference between an expression and a formula?","back":"

Expression: a calculation with numbers and variables (e.g., $4x + 5y$).
Formula: a rule connecting variables (e.g., $A = lw$).

","points":2},{"id":"1242d1a1-f5a9-4b7d-b2ec-144f4f940cac","cardType":"basic","front":"In the BIDMAS order of operations, what do Brackets and Indices represent?","back":"

Brackets: groups of calculations to do first.
Indices: powers (e.g., $x^2$).

","points":2},{"id":"11de27d7-5258-4df7-9618-e2df286682a9","cardType":"cloze","front":"When substituting negative numbers, the safest method is to put the values in [ ].","back":"When substituting negative numbers, the safest method is to put the values in brackets.","points":null},{"id":"bc5c773e-6c40-47e0-8971-9b8df695909a","cardType":"basic","front":"What is the result of squaring a negative number (e.g., $(-5)^2$)?","back":"A positive number (25).","points":1},{"id":"c57a4525-116d-4140-b8af-65e87e71fdad","cardType":"cloze","front":"The fraction line in a formula means [ ].","back":"The fraction line in a formula means divide.","points":null},{"id":"0c433daa-373d-4bce-a304-192bec18cefb","cardType":"basic","front":"How do you calculate a formula containing a large fraction?","back":"Work out the top (numerator) and bottom (denominator) separately before dividing.","points":2},{"id":"7108bd91-c4cf-4e61-9def-5bf691be9292","cardType":"basic","front":"If $a = 6$ and $b = 4$, work out the value of $2a + 5b$.","back":"32","points":2},{"id":"15f7cd60-8e53-405f-a74b-64dab1922814","cardType":"basic","front":"If $k = 6$, find the value of $T = 4(k + 3) - 5$.","back":"31","points":2},{"id":"b846c765-fc9f-4227-823b-075683e020b0","cardType":"cloze","front":"Subtracting a negative number, such as in $-15 - (-8)$, is the same as [ ].","back":"Subtracting a negative number, such as in $-15 - (-8)$, is the same as adding.","points":null},{"id":"bfb809f1-a697-4728-8fa4-a333f69026fa","cardType":"basic","front":"Why is it important to use brackets when substituting a negative value into $b^2$?","back":"To ensure the entire negative number is squared, resulting in a positive value.","points":2},{"id":"8a1ef760-e080-4b3b-aa1f-a697403209dd","cardType":"basic","front":"If $a = 2, b = -5$ and $c = 4$, work out $b^2 - 3ac$.","back":"1","points":3},{"id":"13103c77-4d13-4800-9a63-ef9f6c8efe15","cardType":"cloze","front":"If $y = -6$, then $y^2$ will be [ ] because a negative multiplied by a negative is positive.","back":"If $y = -6$, the

Substitution Flashcards

Substitution Flashcards

Substitution Flashcards

Substitution Flashcards