Math 3rd Exam

Solving a two-step word problem:

• The Maroni family bought 3 lunches for $5 each nd 1 lunch for $7.
• How much did the lunches cost in all?

• 3x$5=15

  $15+$7=22

• 3x$5=18

  $18+$7=25

• 5x$5=25

  $18+$7=25

Rules for rounding two-digit numbers:

If a number has a 1,2,3 or 4 in the ones place, round to the ________10.

• lesser

• greater

If a number has a 5,6,7 or 8 in the ones place, round to the _______10.

• lesser

• greater

Rules for rounding three-digit numbers:

If a number has a 1,2,3 or 4 in the ones place, round to the ________100.

• lesser

• greater

If a number has a 5,6,7 or 8 in the ones place, round to the _______100.

• lesser

• greater

Round to the nearest 10 the number 6 :

• 10

• 0

• 15

Round to the nearest 10 the number 8 :

• 5

• 10

• 20

Round to the nearest 100 the number 702 :

• 700

• 800

• 705

Round to the nearest 100 the number 855 :

• 800

• 850

• 900

Choose the correct answer for the following addition:

475+305=

• 780

• 680

• 786