Task Sets: Binary Arithmetic: Addition, Subtraction, and Multiplication - Uganda NCDC Primary 7 Mathematics

Recall / Warm-Up

These problems review skills you learned earlier.

Add: $11_2 + 11_2$ .

$110_2$

$22_2$

$100_2$

$101_2$

$Column-addition layout stacking 11011 over 10110 with an empty carry row above and an empty result row below$

Add: $11011_2 + 10110_2$ . Give your answer in binary.

Add: $10101_2 + 1110_2$ . Give your answer in binary.

Subtract: $1101_2 - 1001_2$ . Give your answer in binary.

Subtract: $10010_2 - 1011_2$ . This subtraction requires borrowing. Give your answer in binary.

$Binary long-multiplication layout showing two partial products of 101, the second shifted one column left, above an empty result row$

Multiply: $101_2 \times 11_2$ . Give your answer in binary.