Addition and Subtraction with Decimals

In 2018 the tree grew 10.27 inches. In 2019, it grew another 8.4 inches.

How many inches did the tree grow over the two years?

• 11.11 inches

• 18.67 inches

• 18.31 inches

• 94.27 inches

Tags

CCSS.6.NS.B.3

Trinity loves to run.  She ran 3.4 miles on Monday, 2.75 miles on Tuesday, and 5 miles on Wednesday.  How many total miles did she run?

• 3.14

• 314

• 10.15

• 11.15

Tags

CCSS.5.NBT.B.7

Mr Leary rode his bike 3.27 kilometers to the basketball courts. Then he

rode 1.92 kilometers to the park. How many kilometers did Mr Leary ride his bike in all?

Tags

CCSS.5.NBT.B.7

Solve the equation

53.9 + 35.04 =

Answer explanation

Did you line the decimals up?

53.9

• + 35.04

---

Did you add placeholder zeroes?

53.90

• + 35.04

---

88.94

Tags

CCSS.6.NS.B.3

Solve the equation

22.4 - 14.25 =

Answer explanation

Did you line the decimals up?

22.4

• - 14.25

---

Did you add placeholder zeroes?

Did you regroup the 4?

22.40

• - 14.25

---

8.15

Tags

CCSS.6.NS.B.3

Solve the equation

94.69 + 8.914 =

Answer explanation

Did you line the decimals up?

94.69

• + 8.914

---

Did you add placeholder zeroes?

94.690

• + 8.914

---

103.604

Tags

CCSS.6.NS.B.3

When adding a decimal what do you do with the decimal in each number?

• Line the numbers up by place value.

• Make sure I cheat off my partner.

• Line the decimals up.

• Just add the two numbers together.

Tags

CCSS.5.NBT.B.7

53.4 + 44.3

Tags

CCSS.6.NS.B.3

86.7 - 52.5

Tags

CCSS.6.NS.B.3

5.364 + 7.165

Tags

CCSS.6.NS.B.3