Subtraction within 20

Find the missing number.

• 10

• 14

• 12

• 4

Tags

CCSS.1.OA.D.8

Write 2 subtraction facts for the following set of numbers.

(Viết 2 phép trừ cho dãy số sau)

13, 6, 7

Lưu ý: Con được chọn nhiều đáp án đúng

• 13 - 6 = 7

• 7 - 6 = 13

• 6 + 7 = 13

• 13 - 7 = 6

Tags

CCSS.2.NBT.B.5

There are 11 cookies on a plate. Mark puts more 3 cookies on. How many cookies are there now?

There are ___ cookies altogether.

Tags

CCSS.2.OA.A.1

Rick has 14 toy cars. Daniel has 11 toy cars. How many more toy cars does Rick have than Daniel?

Answer:                    toy cars.

Tags

CCSS.2.OA.A.1

Find the missing number.

• 14

• 15

• 16

• 17

Tags

CCSS.1.OA.D.8

Find the missing number.

Tags

CCSS.1.OA.D.8

Addition (+) or Subtraction (-) ?

• +

• -

Tags

CCSS.2.OA.A.1

Kenzie has 7 candies.

Lakota has 11 candies.

How many candies do they have in all?

Tags

CCSS.2.OA.C.3

Write 2 subtraction facts for the following set of numbers.

(Viết 2 phép trừ cho dãy số sau)

15, 3, 12

Lưu ý: Con được chọn nhiều đáp án đúng

• 12 + 3 = 15

• 15 - 12 = 3

• 15 - 3 = 12

• 15 - 5 = 10

Tags

CCSS.2.NBT.B.5

Add (+) or Subtraction (-) ?

• +

• -

Tags

CCSS.2.NBT.B.5