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
4 × 10 = ______
58 + 10 = ______
30 + 20 = ______
52 − 10 = ______
28 + 20 = ______
86 + 20 = ______
6 × 10 = ______
84 + 10 = ______
82 + 20 = ______
1 × 10 = ______
49 − 10 = ______
60 − 10 = ______
2 × 10 = ______
54 + 20 = ______
5 × 10 = ______
3 × 10 = ______
51 + 20 = ______
14 + 10 = ______
8 × 10 = ______
69 + 20 = ______
