A fundamental math operation for elementary school students!
Two-digit mixed addition and subtraction without regrouping involves adding or subtracting a one-digit number from a two-digit number. Here are some examples:
Addition:
1. 14 + 5 = ?
Answer: 19
2. 25 + 3 = ?
Answer: 28
3. 47 + 2 = ?
Answer: 49
Subtraction:
1. 25 – 8 = ?
Answer: 17
2. 94 – 7 = ?
Answer: 87
3. 56 – 4 = ?
Answer: 52
To solve these problems, you can use the standard algorithm or a mental math strategy. Here's a brief review of the steps:
1. Line up the numbers correctly, making sure the digits are in the correct columns.
2. Add or subtract the numbers, starting from the right (ones place).
3. Write the answer in the correct column.
Some tips to keep in mind:
* When adding, make sure to carry the tens digit if the result of the ones place exceeds 9.
* When subtracting, borrow from the tens place if the result of the ones place is less than 0.
These examples are straightforward, but I hope they help you feel more confident with two-digit mixed addition and subtraction without regrouping!
