A.56+25=25+56 | B.(7×16)×5=7×(16×5) | C.101×44=100×44+1×44 |
A.451-78+51 | B.451-51-78 | C.451-51+78 |
A.○=□×△ | B.○=□÷△ | C.△=○×□ |
A.48×6+52×4=(48+52)×(6+4) |
B.(8+56)×3=8×3+56×3 |
C.7×25×4=7×(25×4) |
A.80×125-8×125 | B.8×9×125 | C.80-8×125 |
A.38×25×4=38×(25×4) |
B.99×137+137=137×(99+1) |
C.16×125=2×(8×125) |