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Abacus · Ages 7+ · Set A
The Flash Frame game
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Goal: 15 min
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Remember: Read a frame by its rows, tens first. For a nearly full row, look at the gap. An empty row is a zero.

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Pip's gameAt the school fair, Pip runs the Flash Frame game. Pip lifts a cloth for one blink, then drops it. Each player says the number. Counting every bead is too slow. Read the rows: the top row first, then the row below. Three tens and six ones make thirty-six. If a row is nearly full, look at the gap. Eight across leaves a gap of two. An empty row is a zero, but it still holds its place.
1
What is the quick way to read a frame in a flash?
Count every bead one by oneRead the rows from the topLook only at the bottom row
2
What number is on this frame?
371073
3
The ones row has seven across. The gap, the beads left behind, is .
4
This ones row is nearly full. What number is on the frame?
699660
5
Seeing the gap is quicker than counting nine beads.
TrueFalse
6
Which frame shows 205?
A
B
C

Gaps, order and fixes

7
This frame shows .
8
Join each row to its gap.
  1. 19 beads across
  2. 28 beads across
  3. 37 beads across
  • Agap of 1
  • Bgap of 2
  • Cgap of 3
9
Put the steps for reading a frame in a flash in order.
  • Look at the row below and say the ones
  • Look at the top row
  • Say the tens
10
Which numbers have an empty row? Circle every one.
8052306147
11
Ben skips the empty row and reads 3 hundreds, 0 tens and 6 ones as thirty-six. Is he right?
YesNo
12
Two hundreds, five tens and an empty ones row. This frame shows .
13
Draw the beads for 83 on the frame.
14
Set out buttons as three tens and four ones. Write the number you flash.
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