Final Revision Gr.3

Find the sum.

235+365=

• 600
• 500
• 6000
• 300

Find the difference

523-279=

• 256
• 244
• 378
• 431

Estimate 365 to the nearest 100

• 400
• 450
• 300
• 250

Estimate 823 to the nearest 100

• 800
• 700
• 850
• 900

Round and then find the sum.

423+289=

• 700
• 500
• 800
• 600

Round and then find the sum.

156+730=

• 642
• 926
• 900

• 786

Estimate and then find the difference.

325-166=

• 532
• 100

• 245
• 461

Estimate 64 to the nearest 10

• 70
• 60
• 65
• 75

What is one way you could find the sum of 42 + 36

using mental math?

• 40 + 30 and 2 + 6

• 20 + 60 and 4 + 3

Find the sum

• 169

• 179

• 199