Use the fact that $9\times10=90$9×10=90 and $9\times7=63$9×7=63 to answer the following questions.
Fill in the blank to make the statement true.
Fill in the blanks to make the statement true.
Use the answers from part (a) and part (b) to find $9\times17$9×17.
Use a range of additive and simple multiplicative strategies with whole numbers, fractions, decimals, and percentages.
Generalise the properties of addition and subtraction with whole numbers