This math topic focuses on practicing skip counting backwards by tens, twenties, thirties, and forties, specifically identifying two missing numbers in a sequence. Each question presents a series of numbers with two gaps, and students must determine which pair of consecutive numbers fit correctly based on the subtraction pattern provided. The topic helps enhance number sense by reinforcing the ability to calculate intervals and recognize patterns in sequences of decreasing numbers.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Practice:
Skip Counting Downward by Tens (Two Missing)
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
Skip count downwards by 40
320, 280, __, __, 160, 120
Skip Counting Downward by Tens (Two Missing) Worksheet
| Math worksheet on 'Skip Counting Downward by Tens (Two Missing) (Level 2)'. Part of a broader unit on 'Number Sense - Practice' Learn online: app.mobius.academy/math/units/number_sense_practice/ |
1
| 240, 210, __, __, 120, 90 |
| Skip count downwards by 30 |
a
| 190, 160 |
b
| 190, 170 |
c
| 180, 140 |
d
| 180, 160 |
e
| 170, 140 |
f
| 180, 150 |
2
| 360, 320, __, __, 200, 160 |
| Skip count downwards by 40 |
a
| 280, 240 |
b
| 290, 260 |
c
| 280, 250 |
d
| 280, 230 |
e
| 270, 230 |
f
| 290, 250 |
3
| 270, 240, __, __, 150, 120 |
| Skip count downwards by 30 |
a
| 210, 180 |
b
| 220, 180 |
c
| 220, 190 |
d
| 200, 170 |
e
| 210, 190 |
f
| 220, 200 |
4
| Skip count downwards by 20 |
| 160, 140, __, __, 80, 60 |
a
| 130, 120 |
b
| 120, 90 |
c
| 120, 110 |
d
| 120, 100 |
e
| 110, 90 |
f
| 130, 100 |
5
| 320, 280, __, __, 160, 120 |
| Skip count downwards by 40 |
a
| 250, 200 |
b
| 250, 220 |
c
| 240, 210 |
d
| 240, 200 |
e
| 240, 190 |
f
| 250, 210 |
6
| 180, 160, __, __, 100, 80 |
| Skip count downwards by 20 |
a
| 130, 110 |
b
| 140, 130 |
c
| 140, 120 |
d
| 150, 140 |
e
| 140, 110 |
f
| 150, 130 |