KineticMath Lab • Tactile Math Sheet

Singapore Concrete-Pictorial-Abstract (CPA) Method • Grade 1

Name:

Date:

There is no timer. Read the story. Write the missing number in the box.

Problem #1

A squirrel needs 14 acorns for winter. She already found 6. How many more acorns does she need to reach 14?

14 − 6 = [ ]

Problem #2

A double ten-frame holds 16 shiny marbles. You gift 8 marbles to your brother. How many marbles do you have left?

16 − 8 = [ ]

Problem #3

There are 15 colorful crystals in a treasure chest. You place 7 into your pouch. How many crystals remain in the chest?

15 − 7 = [ ]

Problem #4

16 blue river pebbles are drying in the sun. A quick water wave sweeps 9 pebbles back into the stream. How many pebbles are left on the shore?

16 − 9 = [ ]

Problem #5

A forest squirrel is on stepping stone 5 across the bubbling brook and wants to leap to stone 12. How many stone hops is that?

12 − 5 = [ ]

Problem #6

There are 17 glowing fireflies in a jar. You release 8 fireflies into the warm night breeze. How many fireflies stay inside?

17 − 8 = [ ]