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
86 − 10 = ______
23 − 10 = ______
15 + 10 = ______
74 − 10 = ______
57 − 10 = ______
78 + 10 = ______
7 × 10 = ______
52 − 10 = ______
12 + 10 = ______
43 + 20 = ______
11 + 10 = ______
2 × 10 = ______
5 × 10 = ______
3 × 10 = ______
85 + 10 = ______
54 + 20 = ______
47 − 10 = ______
81 + 20 = ______
59 − 10 = ______
9 × 10 = ______
