Two Digit Plus Minus One Digit

Mark has 17 books. John has 29 books. How many books do they have altogether?

(altogether: tổng cộng, tất cả)

Oggy and Jack have 57 donuts altogether. If Oggy has 29 donuts, how many donuts does Jack have?

(altogether: tổng cộng, tất cả

If: nếu như, giả sử)

17 minus 7 equals .........

• 24

• 14

• 10

• 7

The answer to addition. 5 + 4 = 9

• sum

• difference

• array

• addend

The numbers in an addition sentence that you add together.

5 + 4 = 9

• Addends

• Sum

• Difference

• Doubles

The KEY words: Total, In All, Sum, Add, Plus, Increase, Combine, Both, & All Together mean to ___.

• Multiply

• Divide

• Subtract

• Add

The KEY words: Decrease, Left, Difference, Less, Fewer, Minus, Give Away, Compared, Take Away, & Spend mean to ___.

• Multiply

• Divide

• Subtract

• Add

The answer to subtraction. 9 - 5 = 4

• sum

• difference

• addend

• digits

What do you call the circled numbers?

• subtract

• regroup

• sum

• addends

8 ones + 6 ones = 1 ten and 4 ones. What is this called?

• regroup

• redo

• skip count

• minus