Counting back and by tens

How to help

Counting back, each number is one less: 103, 102, 101, 100, 99. By tens from any number, only the tens digit changes: 47, 57, 67.

• count backsay the numbers going down
• by tensjump ten each time
• one lessthe number just before
• ten morethe tens digit goes up by one

Watch for: Going from 100 back to 90 instead of 99. Changing the ones digit when counting by tens. Counting back from 110 as 109, 108, 107… then 100 too soon.

At home: Count down from any number while waiting in line. Then count by tens from your house number.

Sample sheet and answer key

Something wrong with this sheet? A wrong answer, a hard-to-read picture? Report it

New problems every time, three levels (gentle, core and stretch), themes to pick from, a second page if you want one. Each sheet comes with an answer key and a one-page guide for grown-ups.

Standard

Maryland 2025 1.NOS.A.1 · Count forward and backward within 120 from any number, and by tens.

Also: Virginia SOL 1.NS.1

More grade 1 sheets: more from state standards

• MD 1.NOS.B.6Estimating on a number lineEstimate where a number sits on a number line using 10, 50 and 100 as guides.
• MD 1.NOS.E.13Taking away onesSubtract a one-digit number from a two-digit number without regrouping.