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7 Cards in this Set
- Front
- Back
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Decimals TO Fractions |
Eg: 0.32 32 becomes Nominator Denomintor becomes 100 (. 32 has 2 places so 2 zeros) 0.5333 5333 becomes Nominator Denomintor becomes 10,000 |
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Adding / Subtracting Decimals |
Keep decimal points in STRAIGHT LINE 0.27 1.326 + _______ 1.596 |
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Multiplying Decimals |
Multiply two numbers IGNORING decimal points 1.73. Two decimal places 0.251x Three decimal places ---------- 173 865 346 ---------- 0.43423 five decimal places (This is number of decimal places in the sum)
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Dividing Decimals |
Make it into fraction Eg: 0.25 divided by 1.6 is 0.25 ------- 1.6 Multiply Nom and Den by 1000, etc. To remove decimal places 0.25 0.25 x 100 25 5------- = --------------- = - - - = - - - -1.6. 1.6 x 100 160 32
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Percentage to Fraction |
52% = 52 - - - - 100 |
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Percentage to Decimal |
Move Decimal Point Two places to the LEFT 👈 83% = 83. = 0.83 14.5% = 14.5 = 0.145 |
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Arithmetic Operations with Percentages |
45% of 60 = 45% x 60 = 0.45 x 60 = 27 |
