Math Activity Thursday: Subtraction

Hello!  Sorry I am a chip belatedly inward posting.  Today for MaTh activity Th I volition travel focusing on subtraction.

Whenever I mean value nearly subtraction, I mean value of action.  Things beingness reduced takes activeness on someones part.  Just mean value of these situations.

• Butterflies on a bush, as well as then roughly wing away.
• So many fish as well as and then a predator comes as well as eats roughly or all of them.
• Five lights are as well as and then iii are turned off.
• Twelve grapes inward a bunch as well as and then vii are eaten.
• Six bottles of pigment are used for a mural as well as at that spot are entirely ii bottles left later all the prototype is done.
• Ten bowling pins are upwards as well as later the throw iii remain.

If you lot experience a kid is gear upwards you lot tin too innovate the concept of negative numbers (this tin travel every bit early on every bit nearly 4 years old)...

• It is negative 10 degrees exterior as well as and then the temperature rises vi degrees.
• There are 4 barefoot children merely entirely vii socks.
• Three hungry separate upwards to hold off for nutrient as well as ii of them institute something to eat.
• Tom drew 25 circles on his newspaper as well as grabbed a bunch of Cheerios, merely later putting ane inward each circle at that spot were nonetheless 7 empty circles.

My activity proposition is to cause got a 

Subtraction Scavenger Hunt.

• Prepare plenty 3x5 cards or something like for each pupil to larn three.  Write a dissimilar subtraction work (For event 7-5=) on each card.
• Have the children randomly alternative their commencement bill of fare (it mightiness travel practiced to travel inward groups).
• Give them ii minutes to notice objects or discovery a agency to stand upwards for their problem.  (For my event they mightiness alternative upwards vii toy cars as well as present you lot 5 driving away OR vii pencils inward a loving cup as well as 5 are taken out.)
• Have the children write downwards their give-and-take work as well as present the cast if at that spot is time.
• Repeat ii to a greater extent than times.

I would dear to listen how this activity goes for you lot as well as if the kids cause got fun.  It could fifty-fifty travel homework.

On Sat I'll travel having a invitee blogger here.  Be certain to come upwards dorsum as well as banking concern gibe it out : )  And recall to link upwards whatever of your math weblog posts : )