A check mark tells you to use the tools to show your answer. Your teacher will look at your work with the tools and sign beside the check mark. You can use the tools to help you with any work on this page.

Underline the digit in the ten thousands place:

25 000107 068 40 680 12 327 349 789 376

Underline the digit in the hundred thousands place:

32 335 378 1 005 256.89 $277 256.63 $3 006 126.98

Underline the digit in the millions place:

8 176 365459 607 793 259 259 259 10 026 746

Start with the first number, double it, double again; double at least seven times:

50

7

11

Add 10 to each of these numbers:

123547 2 229 383 27 19 Checkmark

Subtract 10 from each of these numbers:

123547 2 229 383 27 19 Checkmark

Add 100 to each of these numbers:

245367 28 4 567 1 789 798 Checkmark

Subtract 100 from each of these numbers:

245367 28 4 567 1 789 798 Checkmark