Estimate by rounding each number to the nearest whole and solving:
34.84-15.09
What is 50
200
10.12 x 4
What is 40.48
200
0.44 x 60
What is 26.4
200
2.4 ÷ 4
What is 0.6
200
2.05 ÷ 50
What is 0.041
200
Calculate and estimate to check if your answer is reasonable.
14.97 x 6
What is 89.82, 90
300
4 x 2.6 mi
What is 10.4 mi
300
0.24 x 600
What is 144
300
0.63 ÷ 7
What is .09
300
93 ÷ 300
What is 0.31
300
The mass of an envelope is 2.2 grams. Round the mass to the nearest gram. Then estimate the total mass of 275 envelopes. Will your estimate be more or less than the actual total?
What is 550 grams; less than the actual total
400
7 x 6.08 ft
What is 42.56 ft
400
8.7 x 3,000
What is 26,100
400
1.53 ÷ 9
What is 3.7
400
164 ÷ 2,000
What is 0.082
400
Mr. Romero buys 3 chairs at a cost of $27.90 for each. Estimate the least number of $20 bills he needs to buy the chairs.
What is 5 bills
500
3 x 11.82 yd
What is 35.46 yd
500
0.021 x 7,000
What is 147
500
$81.63 ÷ 9
What is $9.07
500
75 ÷ 5,000
What is 0.015
500
A wooden vase and 4 glass vases have a total weight of 21.6 pounds. The weight of the wooden vase if 3.3 pounds. What is the weight of each glass vase? Round your answer to the nearest hundredth of a pound.