Estimating Addends to Find Sums

Round to the nearest HUNDRED to get an estimated sum: 272 + 119

• 391

• 300

• 400

• 390

Round to the nearest HUNDRED to get an estimated sum: 632 + 354

• 986

• 980

• 1,000

• 900

Round to the nearest TEN to get an estimated sum: 216 + 772

• 900

• 990

• 991

• 1,000

Round to the nearest TEN to get an estimated sum: 634 + 128

• 800

• 760

• 700

• 762

Luisa has 183 pennies. Her dad gives her 128 more. To the nearest HUNDRED, ABOUT how many pennies does Luisa have?

• 311

• 300

• 400

• 310

Round to the nearest HUNDRED to get an estimated sum: 186 + 105 = _____

• 291

• 300

• 200

• 290

Round to the nearest TEN to get an estimated sum: 363 + 132

• 495

• 490

• 500

• 400

Round to the nearest HUNDRED to get an estimated sum: 4,382 + 3,237

• 7,000

• 7,600

• 7,700

• 8,000

Jonah reads 265 pages. He has 147 more to read. To the nearest TEN, ABOUT how many pages will Jonah read in all?

• 420

• 300

• 400

• 412

Estimate the sum: 71+85

• 160

• 166

• 150

• 140