Tens and ones
Grade 1 · Level 1 · Sheet 1the answers
Free from tutor.in4me.app · 1.NBT.B.2, 1.NBT.B.3 · Five minutes a day online, and the difficulty follows your child.
- 1.Answer:
How many tens are in 38?
38 - 2.Answer:
How many tens are in 26?
26 - 3.Answer:
How many tens are in 34?
34 - 4.Answer:
How many tens are in 12?
12 - 5.Answer:
How many tens are in 30?
30 - 6.Answer:
How many tens are in 22?
22 - 7.Answer:
How many tens are in 11?
11 - 8.Answer:
How many tens are in 28?
28 - 9.Answer:
How many tens are in 19?
19 - 10.Answer:
How many tens are in 41?
41 - 11.Answer:
How many tens are in 48?
48 - 12.Answer:
How many tens are in 42?
42
Show the answer key
- 1.3
- 2.2
- 3.3
- 4.1
- 5.3
- 6.2
- 7.1
- 8.2
- 9.1
- 10.4
- 11.4
- 12.4
Answer key · Tens and ones · Level 1 · Sheet 1
- 1.3
- 2.2
- 3.3
- 4.1
- 5.3
- 6.2
- 7.1
- 8.2
- 9.1
- 10.4
- 11.4
- 12.4
The mistakes behind most wrong answers
A wrong answer in tens and ones is rarely random. These are the ones that come up most often, each on a real problem — worth knowing before you mark a sheet, because the fix for each is different.
How many tens are in 47?
47The answer is 4. A child who answers 5 probably counted one too many or too few.
How many tens are in 18?
18The answer is 1. A child who answers 8 probably mixed up two similar numbers.
How many tens are in 50?
50The answer is 5. A child who answers 50 probably started counting from the wrong number.
9 tens and 3 ones make what number?
?The answer is 93. A child who answers 12 probably lost track of the ten.
In the app, every wrong answer is matched against mistakes like these, and the weekly email tells you which one your child keeps making — in those words, not as a percentage.