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
8 × 10 = ______
6 × 10 = ______
77 + 20 = ______
22 + 10 = ______
26 + 10 = ______
74 + 10 = ______
3 × 10 = ______
41 + 10 = ______
23 − 10 = ______
48 + 20 = ______
1 × 10 = ______
58 − 10 = ______
31 + 10 = ______
45 + 20 = ______
36 − 10 = ______
68 + 10 = ______
42 + 10 = ______
53 − 10 = ______
51 + 10 = ______
17 + 10 = ______
