Optellen tot 1000 (HTE + T = HTE) - oefening 1
Optellen tot 1000... hoe doe je dat?
163 + 70 =
( 163 +
) +
=
152 + 90 =
( 152 +
) +
=
354 + 60 =
( 354 +
) +
=
483 + 80 =
( 483 +
) +
=
529 + 90 =
( 529 +
) +
=
Antwoord controleren
OK