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
59 + 20 = ______
37 − 10 = ______
26 + 20 = ______
65 − 10 = ______
72 + 20 = ______
4 × 10 = ______
23 − 10 = ______
2 × 10 = ______
42 + 20 = ______
13 + 20 = ______
9 × 10 = ______
24 − 10 = ______
3 × 10 = ______
82 + 20 = ______
30 + 20 = ______
40 + 20 = ______
50 − 10 = ______
19 + 10 = ______
53 + 10 = ______
8 × 10 = ______
