Rounding, Estimation, Addition

Round the number 56 to the nearest 10

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round the number 82 to the nearest 10

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round the number 134 to the nearest 10

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round 345 to the nearest 10

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round 467 to the nearest 100

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round 233 to the nearest 100

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Use rounding to the nearest 10 to estimate

 $45\ +\ 34$  

Tags

CCSS.2.NBT.B.5

CCSS.2.NBT.B.6

CCSS.2.NBT.B.7

CCSS.2.NBT.B.8

Use rounding to the nearest 10 to estimate

 $271+425$  

Tags

CCSS.2.NBT.A.2

CCSS.2.NBT.B.7

CCSS.2.NBT.B.8

Use rounding to the nearest 100 to estimate

 $164+236$  

Tags

CCSS.2.NBT.A.1

CCSS.2.NBT.B.7

CCSS.2.NBT.B.8

Solve the problem using an open number line

45 + 23 =

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6