Use mental math.

278 - 100 = ?

• 378

• 178

• 288

• 268

Use mental math.

278 - 10 = ?

• 378

• 178

• 288

• 268

Which equation matches the open number line.

• 348 + 580 = 232

• 580 - 300 = 348

• 580 -232 = 348

• 232 + 580 = 348

Use the number line to find the difference.

762 - 134 = ?

• 628

• 632

• 636

• 662

April has 365 stickers. She gives 238 stickers to Gwen. How many stickers does April have left?

___ stickers

Meg has 780 blocks. Tasha has 545 fewer blocks than Meg. How many blocks does Tasha have?

____ blocks

Subtract to find the difference.

430-241= ?

• 211

• 671

• 229

• 189

Subtract to find the difference.

526 - 217 = ?

• 309

• 318

• 319

• 329

Which place values needs to be regrouped in order to find the difference?

• ones and tens

• tens and hundreds

• ones, tens, and hundreds

Which place values needs to be regrouped in order to find the difference?

• ones and tens

• tens and hundreds

• ones, tens, and hundreds