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
74 − 10 = ______
40 − 10 = ______
53 + 10 = ______
26 − 10 = ______
77 − 10 = ______
80 + 20 = ______
61 + 10 = ______
3 × 10 = ______
86 + 10 = ______
1 × 10 = ______
2 × 10 = ______
38 + 10 = ______
40 + 20 = ______
71 − 10 = ______
44 − 10 = ______
15 + 10 = ______
41 + 10 = ______
7 × 10 = ______
6 × 10 = ______
46 + 20 = ______
