Estimate
Use basic facts add zeros
2 X 2
2 X 2
Word problems
100
Use estimation to find ABOUT what the answer would be:


57 X 36 =

60 X 40 = 2400

100

20 X 90 = 

1800

100

24 X 28 = 

672

100

72 X 81 = 

5,832

100
A jewelry company made 58 emerald bracelets. They used 34 emeralds to make each bracelet. How many emeralds did the company use?

1,972

200

Use estimation to find ABOUT what the answer would be:


26 X 27 = 

30 X 30 = 900

200

50 X 20 = 

1000

200

58 X 29 = 

1,682

200

18 X 74 =

1,332

200

A researcher says that each person uses 76 gallons of water per day. How many gallons of water will 77 people use in a day?

5,852

300

Use estimation to find ABOUT what the answer would be:


21 X 71 = 

20 X 70 = 1400

300

60 X 30 = 

1800

300

25 X 37 =

925

300

76 X 93 =

7,068

300

A card factory puts 24 greeting cards in a box. How many greeting cards will there be in 18 boxes?

432

400

Use estimation to find ABOUT what the answer would be:


64 X 26 = 

60 X 30 = 1800

400

40 X 80 = 

3200

400

97 X 63 = 

6,111

400

36 X 34 =

1,224

400

Franklin planted 11 types of trees in his orchard. He planted 63 of each type of tree. How many trees did Franklin plant in the orchard?

693

500

Use estimation to find ABOUT what the answer would be:


92 X 36 = 

90 X 40 = 3600

500

12 X 20 = 

240

500

58 X 28 = 

1,624

500

95 X 26 =

2,470

500

Collin bought 90 pizzas. Each pizza had 11 slices. How many slices of pizza did Collin get?

990

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