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
37 + 10 = ______
83 + 10 = ______
9 × 10 = ______
20 + 20 = ______
2 × 10 = ______
40 + 10 = ______
15 + 10 = ______
54 − 10 = ______
64 − 10 = ______
8 × 10 = ______
25 + 20 = ______
35 − 10 = ______
80 + 20 = ______
3 × 10 = ______
17 + 20 = ______
57 + 10 = ______
25 − 10 = ______
89 − 10 = ______
60 + 10 = ______
44 − 10 = ______
