Making 10's and comparing two digit numbers

Which expression uses "making 10's" to solve 15+9?

• (15 + 4) + 5

• (15 + 5) + 4

• (5 + 5) + 5 + 4

• (10 + 5) + 9

Tags

CCSS.2.OA.A.1

Which expression uses "making 10's" to solve 16 - 8?

• (16 - 4) - 4

• (16 - 10) + 2

• (16 - 6) - 2

• (10 + 6) - 8

Tags

CCSS.2.NBT.B.5

Which expression uses "making 10's" to solve 17 + 8?

• (17 + 3) + 5

• (17 - 7) + 7 + 8

• (17 + 5) + 3

• (10 + 7) + 8

Tags

CCSS.2.OA.A.1

Which expression correctly uses "making 10's" to solve 13 - 6?

• (10 + 3) - 6 = 13

• (13 - 5) - 1 = 6

• (13 - 10) + 4 = 8

• (13 - 3) - 3 = 7

Which expression correctly uses "making 10's" to solve 96 - 14?

• (96 - 10) - 4 = 80

• (96 - 6) - 8 = 82

• (96 - 4) - 10 = 81

• (96 - 7) - 7 = 83

Tags

CCSS.2.NBT.B.5

Which expression correctly uses "making 10's" to solve 37 + 11?

• (37 + 3) + 8 = 48

• (37 + 10) + 1 = 48

• (37 + 1) + 10 = 48

• (37 + 5) + 6 = 48

Tags

CCSS.2.NBT.B.5

Which expression correctly uses "making 10's" to solve 45 - 8?

• (45 - 5) - 3 = 38

• (45 - 9) + 3 = 37

• (45 - 5) - 3 = 37

• (45 - 3) - 5 = 38

Which expression correctly uses "making 10's" to solve 64 - 12?

• (64 - 4) - 8 = 52

• (64 - 6) - 6 = 54

• (64 - 4) - 8 = 54

• (64 - 6) - 6 = 52

Tags

CCSS.2.NBT.B.5

Which expression correctly uses "making 10's" to solve 16 - 9?

• (16 - 3) - 6 = 7

• (16 - 10) - 1 = 5

• (16 - 6) - 3 = 7

• (16 - 5) - 4 = 5

Which expression correctly uses "making 10's" to solve 26 + 11?

• (26 + 10) + 1 = 37

• (26 + 5) + 6 = 37

• (26 - 6) + 7 = 27

• (26 + 4) + 7 = 37