Consider the multiplication $16\times5$16×5
Fill in the blanks by breaking $16$16 up into factors.
$16\times5=2\times\editable{}\times5$16×5=2××5
Solve $16\times5$16×5 by using the factor strategy from part (a).
$16\times5$16×5 | $=$= | $2\times8\times5$2×8×5 |
$=$= | $2\times\editable{}$2× | |
$=$= | $\editable{}$ |
Consider the multiplication $20\times25$20×25
$18\times7$18×7
$4\times13$4×13