Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
85 + 10 = ______
2 × 10 = ______
14 + 10 = ______
12 + 20 = ______
84 + 20 = ______
89 + 10 = ______
16 + 10 = ______
25 + 20 = ______
78 − 10 = ______
43 + 10 = ______
20 + 10 = ______
75 + 10 = ______
33 + 10 = ______
31 − 10 = ______
7 × 10 = ______
44 − 10 = ______
57 + 10 = ______
5 × 10 = ______
50 − 10 = ______
83 − 10 = ______
