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
4 × 10 = ______
7 × 10 = ______
23 − 10 = ______
56 − 10 = ______
5 × 10 = ______
65 − 10 = ______
62 + 20 = ______
2 × 10 = ______
99 − 10 = ______
57 + 20 = ______
44 + 10 = ______
3 × 10 = ______
72 + 10 = ______
44 + 20 = ______
42 + 10 = ______
78 + 10 = ______
42 + 20 = ______
59 − 10 = ______
72 − 10 = ______
26 − 10 = ______
