Adding and Decimals and Whole Numbers

12.345 + 2 + 1.5

Mathematical Equivalence

ON

0.347 + 17 + 0.29

Mathematical Equivalence

ON

80.93 - 68 =

• 12.93

• 81.61

• 148.93

• 86.13

21 + 4.09 =

• 4.30

• 6.19

• 25.09

• 16.91

628,281 + 52,261

• 628,483

• 680,542

• 680,263

• 635,274

Henry has one piece of yarn that is 6.10 centimeters long and another piece that is 37.45 centimeters long. What is the combined length of the two pieces of yarn?

• 43.55

• 31.35

• 376.55

• 435.5

Select the following that are true statements.

• 7.15 + 26.5 = 41.5

• 9.2 - 1.349 = 7.851

• 23 - 5.3 = 1.77

• 36 + 8.4 = 44.4

Ronnie spent $142.75 on groceries, $40.99 on dog food, and $9.62 dog toys. Estimate the total Ronnie spent. What is your estimate?

4.5 + 2.68 + 1.39 =

• 857

• 85.7

• 8.57

• 80.57

Dave bought a game for $7.43. How much change will Dave get from two $5 bills?

• $2.43

• $12.57

• $17.43

• $2.57