There are various methods to solve suitable addition operations for numbers up to 10 000

• Using an abacus
• Using common forms

Examples of questions and solutions to addition operations
 Birds 1 382 Elephants 6 Crocodiles 15 Monkeys 104

The table above shows the number of animals in a zoo. How many birds and monkeys are there?

Mathematical sentences: $$1\,382\space+\space104\space=\space\underline{\quad\quad}$$

Using an abacus
Using common forms $$\begin{array} {rr} \quad \\1\,\space\space3\space8\space2 \\+\quad\space\space\space1\space0\space4 \\\hline\space1\,\space\space4\space8\space2 \\\hline \end{array}$$

• When 0 is added to any number, the answer is the number itself

There are various methods to solve suitable addition operations for numbers up to 10 000

• Using an abacus
• Using common forms

Examples of questions and solutions to addition operations
 Birds 1 382 Elephants 6 Crocodiles 15 Monkeys 104

The table above shows the number of animals in a zoo. How many birds and monkeys are there?

Mathematical sentences: $$1\,382\space+\space104\space=\space\underline{\quad\quad}$$

Using an abacus
Using common forms $$\begin{array} {rr} \quad \\1\,\space\space3\space8\space2 \\+\quad\space\space\space1\space0\space4 \\\hline\space1\,\space\space4\space8\space2 \\\hline \end{array}$$

• When 0 is added to any number, the answer is the number itself