Just Solve It
Estimate
Wacky Word Problems
Place Value
100

3 x 95

285

100

Estimate 5 x 72

5 x 70 = 350

100

A rocket booster costs $158. If Danica needs to replace her car's tires with rocket boosters, how much will 4 rocket boosters cost?

158 x 4 = $632

100
Write 4,527 in expanded form. 

4,000 + 500 + 20 + 7

200

62 x 32

1,984

200

Estimate 29 x 43

30 x 40 = 1200

200

Marlene is making 4 batches of pixie dust for her party. Each batch requires 2 cups of glitter and makes 24 jars. How many jars will Marlene have for the party?

96 jars

(extra info - 2 cups of glitter)

200

4 x 93 = 4 x (___ + ___)

4 x 93 = 4 x (90 + 3)

300

45 x 91

4,095

300

Estimate 3 x 4,488 by rounding 4,488 to the thousands.

Estimate 3 x 4,488 by rounding 4,488 to the hundreds.

Which estimate is better. Why? 

3 x 4,000 = 12,000

3 x 4,500 = 13,500

Rounding to the hundreds is better because 4,488 is in between 4,000 and 5,000 so the estimate is closer to the actual answer. 

300

A farmer plants lollipops in rows. He plants 36 rows of lollipops with 13 lollipop seeds in each row. How many lollipop seeds did the farmer plant?

36 x 13 = 468 lollipop seeds

300

Fill in the blanks to explain the mental math. 

20 x 30 = (__ x 10) + (__ x 10)

20 x 30 = (__ x __) + (10 x 10)

20 x 30 = (____) x 100

20 x 30 = __________

20 x 30 = (2 x 10) + (3 x 10)

20 x 30 = (2 x 3) + (10 x 10)

20 x 30 = (6) x 100

20 x 30 = 600

400

541 x 6

3,246

400

There is a book sale at the library. The price for each book is $4. If 239 books are sold, about how much money will be made?

Is your estimate more or less than the actual amount?

4 x 200 = 800

Estimate is less because 239 was rounded down. 

400

My school is collecting left socks for a clothing drive. There are 608 students in the school. Each student will bring in 3 left socks. How many left socks will the school collect in all?

608 x 3 = 1,824

400

Write the 4 multiplication expressions needed to solve 52 x 68

8 x 2

8 x 50

60 x 2

60 x 50

500

6 x 5,214

31,284

500

Zoe rounded 6 x 8,493 to 6 x 8,000. Andrew rounded the same problem to 6 x 9,000. Who will have the closer estimate? How do you know?

Zoe will have the closer estimate because 8,493 is closer to 8,000 than 9,000. 

500

Miss Brown bought 18 sheets of scratch-and-sniff stickers. Each sheet contained 32 stickers. How many stickers did Miss Brown buy for her students?

18 x 32 = 576 stickers

500

Write in expanded notation:

3,248 x 8

8 x ______

8 x ______

8 x ______

8 x ______

3,248 x 8

8 x 3,000

8 x 200

8 x 40

8 x 8