Mental Math
Solve using mental math.
50 x 5
What is 250?
Round 27 to the nearest ten.
What is 30?
11 x 4
What is 44?
A jet plane can travel 567 miles per hour. How many miles could it travel in 4 hours?
What is 2,268 mph?
100 x 6
What is 600?
Solve using mental math.
80 x 30
What is 240?
Round 647 to the nearest hundred.
What is 600?
15 x 5
What is 75?
An adult panda can eat 138 pounds of bamboo each day. How many pounds of bamboo can a panda eat in a week?
What is 966 pounds?
222 x 4
Waht is 888?
Solve using mental math.
600 x 70
What is 42,000?
Estimate 10 x 53.
What is 10 x 50 = 500?
56 x 3
What is 168?
Harry buys 9 dozen eggs. How many eggs does he have in all?
What is 108 eggs?
648 x 5
What is 3,240?
Solve using mental math.
90 x 40
What is 3,600?
Estimate 78 x 6.
What is 80 x 6 = 480?
61 x 7
What is 427?
Tina has 3 times as many sports cards as Henry. Kayla has 6 times as many sports cards as Henry. If Kayla has 24 sports cards, how many sports cards do they have altogether?
What is 40 sports cards?
552 x 7
What is 3,862?
Solve using mental math.
500 x 800
What is 400,000?
Estimate 345 x 5.
What is 350 x 5 = 1750?
99 x 9
What is 891?
After playing a game of Lotsa Money, Cole won 5 times as many gold coins as Julian. Julian won half as many gold coins as Jacob. Altogether they won 32 gold coins. How many gold coins did Cole win?
What is 20 gold coins?
377 x 8
What is 3,016?