What is the estimate for each expression? Drag the number to each box.

Question

(2 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Expression Estimate
18+25
The sum of fractions 1/8 [set as fraction] and 2/5 [set as fraction]

1314−110
The difference of the fractions 13/14 [set as fraction] and 1/10 [set as fraction].

112+120
The sum of the fractions 1/12 [set as fraction] and 1/20 [set as fraction]

Answer 1

To provide accurate estimates for each expression, we'll look at them one by one.

1. Estimate for 18 + 25:

   • This can be rounded as:
     • 18 is close to 20
     • 25 is close to 30
   • Therefore, an estimate for 18 + 25 is about 50.

2. Estimate for the sum of fractions 1/8 and 2/5:

   • Convert the fractions to decimal for convenience:
     • 1/8 ≈ 0.125
     • 2/5 = 0.4
   • Therefore, an estimate for 1/8 + 2/5 is about 0.5 (0.125 + 0.4 ≈ 0.525 rounds to 0.5).

3. Estimate for 1314 - 110:

   • This can be rounded as:
     • 1314 is close to 1300
     • 110 is close to 100
   • Therefore, an estimate for 1314 - 110 is about 1200 (1300 - 100 = 1200).

4. Estimate for the difference of fractions 13/14 and 1/10:

   • As decimals:
     • 13/14 ≈ 0.9286
     • 1/10 = 0.1
   • Therefore, an estimate for 13/14 - 1/10 is roughly 0.8 (0.9286 - 0.1 = 0.8286 rounds to 0.8).

5. Estimate for the sum of fractions 1/12 and 1/20:

   • As decimals:
     • 1/12 ≈ 0.0833
     • 1/20 = 0.05
   • Therefore, an estimate for 1/12 + 1/20 is about 0.13 (0.0833 + 0.05 ≈ 0.1333 rounds to 0.13).

So the final estimates are:

• 18 + 25: 50
• 1/8 + 2/5: 0.5
• 1314 - 110: 1200
• 13/14 - 1/10: 0.8
• 1/12 + 1/20: 0.13

Make sure to place each response in the correct box according to the expressions!