Question

Choose two strategies that we can use to calculate 54 + 11254 + 11254, along with 112.

A. Calculate 500 + 100 + 40 + 12500 + 100 + 40 + 12500, and then add 100, 40, and 12.
B. Calculate 56 + 11056 + 11056, and then add 110.
C. Calculate 66 + 10066 + 10066, and then add 100.

Answer 1

Two strategies to calculate the given numbers A. Calculate 500 + 100 + 40 + 12500 + 100 + 40 + 12500, and then add 100, 40, and 12. B. Calculate 56 + 11056 + 11056, and then add 110.

Step-by-step explanation:

Both strategies A and B are valid approaches for calculating the sum 54 + 11254 + 11254 + 112.

Strategy A:

A. Calculate 500 + 100 + 40 + 12500 + 100 + 40 + 12500, and then add 100, 40, and 12.

Strategy B:

B. Calculate 56 + 11056 + 11056, and then add 110.

For Strategy A, breaking down the sum into place values can help simplify the addition process. It involves adding hundreds, tens, and ones separately before combining the results.

For Strategy B, starting with 56 + 11056 + 11056 simplifies the problem by dealing with smaller numbers first before adding the hundreds.

Both strategies aim to make the addition process more manageable by breaking down the numbers into parts and then combining the results. The choice between the two may depend on personal preference or the ease of mental calculations.