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
18 + 10 = ______
95 − 10 = ______
26 + 20 = ______
75 − 10 = ______
14 + 10 = ______
38 − 10 = ______
50 + 20 = ______
34 − 10 = ______
48 + 10 = ______
30 + 10 = ______
1 × 10 = ______
22 + 20 = ______
47 − 10 = ______
65 + 10 = ______
3 × 10 = ______
82 + 10 = ______
8 × 10 = ______
2 × 10 = ______
68 + 20 = ______
12 + 20 = ______
