Review adding 3-digit numbers using column addition without regrouping | Exit Quiz | Oak National Academy

Which expression is represented by the Base 10 blocks?

• 26 + 152

• 116 + 125

• 126 + 152

• 125 + 162

Answer explanation

The Base 10 blocks represent the expression 126 + 152

What is the missing sum in the column addition?

(a)  

Answer explanation

533 + 233 = 766

What tens digit is missing from this column addition?

(a)  

Answer explanation

7 is the missing tens digit. 9 tens - 2 tens = 7 tens

What hundreds digit is missing from this column addition?

(a)  

Answer explanation

2 is the missing hundreds digit. 7 hundreds - 5 hundreds = 2 hundreds

What is the missing addend?

(a)  

Answer explanation

The missing addend is 306

Use the digit cards. Set them out to make a 3-digit and a 2-digit number. What is the largest sum you can make?

(a)  

Answer explanation

573 is the largest sum you can make. For example, 542 + 31 = 573