Subtraction Estimation

237 fifth graders and 346 fourth graders went on a field trip. Estimate how many more fourth graders were on a field trip than fifth graders.

• 200 more

• 300 more

• 100 more

• 400 more

Cam has 390 baseball cards. He gives Lane 176 of the baseball cars. About how many baseball cards does Cam have left?

• 200

• 210

• 750

• 214

9836-6365

• 3659

• 3476

• 3472

• 3471

784-262

• 522

• 625

• 874

• 878

• A

• B

• C

• D

Estimate how many more miles were run last year than this year by rounding each number in the table to the nearest hundred and solving the problem

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Round to the HUNDREDS and then subtract. What is the answer?

• A
• B
• C
• D

• A

• B

• C

• D

784-763

• 21

• 22

• 31

• 41