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
27 − 10 = ______
98 − 10 = ______
8 × 10 = ______
9 × 10 = ______
89 + 10 = ______
39 − 10 = ______
82 + 20 = ______
16 + 20 = ______
3 × 10 = ______
49 + 20 = ______
74 + 20 = ______
22 + 10 = ______
6 × 10 = ______
1 × 10 = ______
51 + 10 = ______
88 + 20 = ______
34 − 10 = ______
64 + 20 = ______
46 + 10 = ______
41 + 20 = ______
