Adding and Subtracting in Your Head flashcards

16 practice cards drawn from the Adding and Subtracting in Your Head lessons. Tap a card to turn it over. Every answer is checked against the lesson it came from.

Read the Adding and Subtracting in Your Head lessons in full →

4 + 28 + 6 — which two make ten?

4 and 6

from “Adding in Any Order”

4 + 17 + 6 — which two make ten?

4 and 6

from “Adding in Any Order”

47 + 11

58

from “Adding by Splitting”

62 + 34

96

from “Adding by Splitting”

45 + 8

53

from “Bridging Through Ten”

76 + 6

82

from “Bridging Through Ten”

34 + 35

69

from “Doubles and Near Doubles”

22 + 23

45

from “Doubles and Near Doubles”

52 + 29

81

from “Rounding and Adjusting”

53 - 19

34

from “Rounding and Adjusting”

56 - 48

8

from “Counting Up to Subtract”

82 - 79

3

from “Counting Up to Subtract”

72 - 47

25

from “The Same Difference”

67 - 49

18

from “The Same Difference”

711 + 10

721

from “Adding and Subtracting Tens and Hundreds”

262 + 20

282

from “Adding and Subtracting Tens and Hundreds”

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