1st Grade Tens and Ones Quiz: 10 Questions with Explanations

A 43B 34C 7D 304

There are 3 rods (3 tens) and 4 cubes (4 ones), so 34. Writing 43 swaps the digits.

A 10 tensB 0 tensC 2 tensD 1 ten

10 ones are one bundle, which is 1 ten.

A 15B 51C 6D 105

1 ten is 10 and 5 ones is 5, so 15. The number 51 is 5 tens and 1 one.

A 16B 61C 6D 10

One full frame is 10 and 6 more dots make 16. Reading it as 61 swaps the digits.

A 6B 60C 16D 66

6 tens is 60. The zero shows there are no ones.

A 7 tensB 2 onesC 2 tensD 7 ones

The 7 is in the ones place, so it is 7 ones. A common mistake is to read it as 70.

A 8B 18C 80D 88

8 rods are 8 tens: 10, 20, 30, 40, 50, 60, 70, 80.

A 4 tens and 9 onesB 9 tens and 4 onesC 4 tens and 4 onesD 4 tens and 0 ones

49 has a 4 in the tens place and a 9 in the ones place. Switching them makes 94.

A 32B 23C 5D 50

2 tens and 3 ones make 23. Adding 2 + 3 to get 5 forgets the boxes hold ten each.

A 97B 90C 79D 95

In 79 the 9 is the last digit, so it is in the ones place. In 97 the 9 is in the tens place.