Use $2$ different strategies for each question below. Vary your strategies choosing from base blocks, the

standard algorithm, using left to right recording method, using right to left recording method, right to

left carry below, the area model and lattice multiplication.

${114}_5{4}_5$

${121}_4{13}_4$

${321}_{7}67$

$12312$

What is your favorite strategy for multiplying multi$-$digit numbers.