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 = ______
43 + 20 = ______
3 × 10 = ______
1 × 10 = ______
35 + 10 = ______
39 + 10 = ______
78 + 20 = ______
61 + 10 = ______
2 × 10 = ______
82 − 10 = ______
15 + 20 = ______
31 + 20 = ______
46 − 10 = ______
32 − 10 = ______
58 + 20 = ______
68 − 10 = ______
27 − 10 = ______
94 − 10 = ______
33 − 10 = ______
51 + 20 = ______
