Addition

Addition Algorithm

100

54+97

151

200

382 + 129

511

300

3216 +6549

9,765

400

64,152 + 82,896

147,048

Multiple numbers

100

11+52+24

87

200

56+34+27

117

300

562+54+108

724

400

134+1896+2043

4073

Mental

100

15+17

32

200

126+184

310

300

531+378

909

400

2521+677

3198

Perimeter

300

A regular hexagon has a perimeter of 36 cm.

What is the length of each side?

6cm

400

An irregular pentagon has a perimeter of 48 cm. If 4 of the sides measure 12 cm, 8 cm and 15 cm.

What could the missing sides measure?

Various

500

A rectangular whiteboard is 3 meters long and 2 meters wide. 

It costs $3 per meter to put a metal frame around it. How much will the frame cost?

$30