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
1 × 10 = ______
2 × 10 = ______
16 + 20 = ______
86 + 10 = ______
3 × 10 = ______
59 − 10 = ______
50 + 20 = ______
23 + 10 = ______
95 − 10 = ______
23 − 10 = ______
7 × 10 = ______
97 − 10 = ______
36 − 10 = ______
66 + 20 = ______
54 + 20 = ______
6 × 10 = ______
39 + 20 = ______
26 + 10 = ______
39 + 10 = ______
8 × 10 = ______
