Estimate first: is this answer sensible?

Answer Key - Grade 6 Math Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Ari's garden bed is 4.9 m long and 6.1 m wide. Rounding each to the nearest whole, about what is 4.9 × 6.1?

   30
2. 2.

   Bo's new rug is 7.8 feet long and 3.2 feet wide. Rounding each to the nearest whole, about what is 7.8 × 3.2?

   24
3. 3.

   Esme rides a bike 2.9 km each day for 9.7 days (the bell gets a workout). Rounding each to the nearest whole, about what is 2.9 × 9.7?

   30
4. 4.

   Jun mixes 2 7/8 cups of flour and 1 1/10 cups of oats. About how many cups is that?

   • About 5 cups
   • About 4 cups
   • About 3 cups
5. 5.

   Kira estimates 5/6 + 4/9. Which estimate is best?

   • About 9/15
   • About 1 1/2
   • About 1/2
6. 6.

   Luz has 3 1/2 m of ribbon and uses 1 4/5 m. About how much is left?

   • About 1 1/2 m
   • About 2 1/2 m
   • About 5 m
7. 7.

   Milo buys 3 notebooks at $1.95 each. About how much is that?

   • About $20
   • About $3
   • About $6
8. 8.

   Ren shares 48.2 m of string among 6 kites. About how much string does each kite get?

   • About 80 m
   • About 42 m
   • About 8 m
9. 9.

   Tala splits 7.9 liters of water into 2 jugs. About how much goes in each?

   • About 4 liters
   • About 16 liters
   • About 10 liters
10. 10.

    Zee shares 0.6 kg of trail mix among 3 friends. About how much does each get?

    • About 2 kg
    • About 1.8 kg
    • About 0.2 kg