📘 arithmetic

1. The problem is to multiply 70 by 70. 2. We write the multiplication as $70 \times 70$.

1. The problem is to add the numbers 23 and 4. 2. Start with the number 23.

1. **State the problem:** Calculate the product of 1 and 1. 2. **Multiply the numbers:** $1 \times 1 = 1$

1. The problem is to find the sum of 84 and 84. 2. We add the two numbers: $$84 + 84$$.

1. The problem is to add the numbers 200 and 43. 2. We start by writing the addition: $$200 + 43$$

1. The problem is to multiply 79 by 79. 2. We can write this as $79 \times 79$.

1. The problem appears to be adding two numbers: 43 and 254. 2. To add these numbers, align them by place value:

1. The problem is to multiply 86 by 68. 2. Write the multiplication as $86 \times 68$.

1. **State the problem:** Calculate the sum of 456 and 36. 2. **Add the numbers:**

1. The problem is to multiply 12 by 12. 2. Multiplication means adding a number to itself a certain number of times. Here, we add 12 to itself 12 times.

1. The problem is to find the sum of 123 and 34. 2. We add the two numbers: $$123 + 34$$.

1. The problem is to subtract 10 from 97. 2. Write the expression: $97 - 10$

1. The problem is to find the sum of 11 and 10. 2. We add the two numbers: $$11 + 10 = 21$$

1. The problem is to multiply 600 by 700. 2. Write the multiplication as $600 \times 700$.

1. The problem is to multiply 90 by 60. 2. Multiplication means adding 90 to itself 60 times.

1. The problem is to multiply 57 by 69. 2. Write the multiplication as $57 \times 69$.

1. The problem is to multiply 4 by 9. 2. Multiplication means adding the number 4, nine times: $$4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4$$.

1. The problem is to find the sum of 34 and 51. 2. Add the two numbers: $$34 + 51$$

1. The problem is to multiply 68 by 12. 2. We can write this as $68 \times 12$.

1. The problem is to find the sum of 90 and 30. 2. We add the two numbers: $$90 + 30$$.

1. The problem is to multiply 3 by 7. 2. Multiplication means adding the number 3 seven times or the number 7 three times.