Question

find the missing number.

1. ________ + 3.485 = 7.02
2. 12.6 - ________ = 8.375
3. ________ - 4.89 = 2.705
4. 6.08 + ________ = 10.5

Explanation:

Problem 5

Step1: Let the missing number be \( x \). The equation is \( x + 3.485 = 7.02 \). To find \( x \), subtract 3.485 from both sides.

\( x = 7.02 - 3.485 \)

Step2: Perform the subtraction.

\( 7.02 - 3.485 = 3.535 \)

Step1: Let the missing number be \( y \). The equation is \( 12.6 - y = 8.375 \). To find \( y \), rearrange the equation as \( y = 12.6 - 8.375 \).

\( y = 12.6 - 8.375 \)

Step2: Perform the subtraction.

\( 12.6 - 8.375 = 4.225 \)

Step1: Let the missing number be \( z \). The equation is \( z - 4.89 = 2.705 \). To find \( z \), add 4.89 to both sides.

\( z = 2.705 + 4.89 \)

Step2: Perform the addition.

\( 2.705 + 4.89 = 7.595 \)

Answer:

\( 3.535 \)

Problem 6