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Home Question Bank Math Arithmetic Archive 2025 January 22

Arithmetic Questions from Jan 22,2025

Browse the Arithmetic Q&A Archive for Jan 22,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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Simplify \( 3.1 \quad \) Rewrite 0,88 as a common fraction \( 66 \quad \frac { 12 } { 25 } - \frac { 7 } { 25 } \) n) \( 8 \times(3 \div 2) \) 4. Aeorrange and then calculate: \( \begin{array}{lll}\text { a) } 70+460+30 & \text { b) } 5 \times 33 \times 2 & \text { c) } 13 \times 25 \times 4 \\ \text { d) } 40+812+60 & \text { e) } 26 \times 50 \times 2 & \text { f) } 197+17+3\end{array} \) xpress the following as a ratio in its simplest form: 1) 18 to 12 (2) 24 to 32 (3) 15 to 25 1) 30 to 20 (5) 9 to 15 to 21 (6) 1000 to 10 to 100 ) 1,6 to 1 (8) 0,36 to 0,06 (9) 0,01 to 0,00001 0) \( \quad 2.4 \) to 0.8 to 0.16 (11) 30 cm to \( 1,5 \mathrm{~m} \) (12) 6 kg to 600 g to 3000 g 3) 48 seconds to 1 minute (14) \( 3 \frac{1}{7} \) to \( \frac{11}{14} \) (15) \( 2 x^{2} y \) to \( 6 x y^{2} \) Find the product Write the final answer in scientific notation. \( \left(3 \times 10^{2}\right)\left(2 \times 10^{2}\right) \) (2) \( \left(4 \times 10^{3}\right)\left(2 \times 10^{7}\right) \) (3) \( \left(3.5 \times 10^{5}\right)\left(3.2 \times 10^{6}\right) \) \( 146\left(-5 \times 10^{5}\right)\left(6 \times 10^{2}\right) \) (5) \( \left(3.3 \times 10^{11}\right)\left(2.8 \times 10^{4}\right) \) (6) \( \left(-9 \times 10^{7}\right)\left(-8 \times 10^{6}\right) \) (7) \( \left(6 \times 10^{2}\right)\left(7 \times 10^{7}\right) \) (8) \( \left(5.2 \times 10^{7}\right)\left(2.3 \times 10^{3}\right) \) (9) \( \left(4 \times 10^{2}\right)\left(-5 \times 10^{4}\right) \) L. Find the HCF and LCH for these set of numbers 9) 27 and 72 b) B Le and 80 (b) Write down the additive and multiplicative inverses of the following: \( \begin{array}{ll}\text { (1) } 7 & \text { (2) } \frac{1}{7} \\ \text { (3) }-5 & \text { (4) }-\frac{1}{5} \\ \text { (5) } \frac{8}{5} & \text { (6) }-\frac{8}{5}\end{array} \) 26. \( 50 \times 300 \) 1 Fractions 3 Which of the divisions, \( A \) or \( B \). would you find easier to do? Work B \( 96 \div 2 \) out the answer. a A 96-3 or B \( 84 \div 4 \) b A \( 84 \div 3 \) or B \( 90 \div 5 \) \( \begin{array}{lll}\text { c A } & 90 \div 3 \\ 126 \div 3\end{array} \) B \( \quad 126 \div 7 \) d A 120 the workings to make these calculations easier A complete the wh \( \quad \square \rightarrow \square \div \square= \)
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