About Num Drill
Num Drill is a free online math drill and practice site for elementary school, built around short adaptive quizzes and printable worksheets.
What Num Drill does
A Num Drill quiz is ten questions on one skill at one level, and takes about a minute. It times every answer and weights the next quiz toward the facts a child misses or answers slowly, so practice goes where it is needed. There are seven skills — addition, subtraction, multiplication, division, fractions, percentages and pre-algebra — each with six levels of difficulty.
Alongside the quizzes are 45 free printable worksheets with answer keys, and interactive reference tools: a multiplication chart, a number line, a place value chart, a coordinate plane and an order of operations guide.
Who it is for
Elementary students, mainly grades 1 to 6, with some early arithmetic and pre-algebra at either end. Parents use it for a few minutes of daily practice at home (see for parents); teachers use it as a warm-up and send students straight to a specific skill and level with an assignment link (see for teachers). Practice is organized by skill and by grade.
How it works, and why
Num Drill is built on retrieval practice: many short, spaced recalls beat one long session, and fluency means answering from memory rather than counting. The methodology page covers the research behind the design.
Free, with no accounts
Num Drill is free and needs no sign-up or email. A child can take a quiz as a guest, or a parent can set up a profile, which is stored on the device rather than in an account. What is stored with each quiz is listed in the FAQ.
Common questions
What is Num Drill?
Num Drill is a free online math drill and practice site for elementary school, built around short adaptive quizzes and printable worksheets.
Who is Num Drill for?
Elementary students, mainly grades 1 to 6, practicing math facts and skills at home or in class. Parents use it for daily practice; teachers use it as a warm-up and with assignment links.
What can kids practice on Num Drill?
Seven skills — addition, subtraction, multiplication, division, fractions, percentages and pre-algebra — each with six levels, plus 45 printable worksheets and interactive charts.
Does Num Drill need an account?
No. Quizzes work as a guest, and profiles are stored on the device rather than in an account. There is no sign-up and no email.
Related: all practice skills · printable worksheets · methodology · for parents · for teachers · FAQ