Mental Math
Word Problems
Regrouping
Partial Products
Estimating
100
Use mental math to solve. 20 x 10
200
100
Taylor Swift has 27 fish. She checks on each fish 11 times a day. How many times does Taylor check on her fish?
297 times
100
Use regrouping to solve. 13 x 24
312
100
What is 17 x 14? Use partial products to solve.
238
100
DAILY DOUBLE Estimate to solve. 17 x 22 =
400
200
Use mental math to solve. 90 x 60 =
5,400
200
Selena Gomez sings at 27 different concerts when she tours. At each concert she sings 19 songs. How many songs will she sing at the end of her tour?
513 songs
200
DAILY DOUBLE Use regrouping to solve. What is 27 x 39?
1053
200
What is 24 x 35? Use partial products to solve.
840
200
Estimate to solve. 56 x 34
1,800
300
Use mental math to solve. 300 x 80 =
24,000
300
Justin Bieber has produced 12 albums. If each album has 18 songs on it, how many songs has he created all together?
216 songs
300
Use regrouping to solve. What is 59x68, show your work.
4012
300
What is 56 x 65? Use partial products to solve.
3,640
300
What is 61 x 78. Estimate to solve.
4,800
400
Use mental math to solve. What is 80 x 100
8,000
400
Drake has 17 tour busses and each bus has 29 seats on them. Demi Lovato has 13 tour busses and each bus has 34 seats on them. Who has more seats on all their busses? How many more?
Drake: 493 seats Demi: 442 seats Drake has more seats. 51 more seats.
400
Use regrouping to solve. What is 86 x 73
6278
400
What is 62 x 98? Use partial products to solve.
6,076
400
What is 18 x 29? Estimate to solve.
600
500
Use mental math to solve. 40 x 40
1,600
500
If Tom Brady threw 13 touch downs a game how many points would he score? *Each touch down is worth 6 points. What if Tom Brady threw 13 touch downs for the entire 16 game season? How many points would he score?
1,248 points
500
Use regrouping to solve. What is 99 x 99
9801
500
What is 83 x 93? Use partial products to solve.
7719
500
What is 44 x 76. Estimate to solve.
3,200
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