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
86 − 10 = ______
2 × 10 = ______
38 + 20 = ______
78 + 10 = ______
83 + 20 = ______
6 × 10 = ______
85 + 10 = ______
23 − 10 = ______
36 − 10 = ______
5 × 10 = ______
32 + 10 = ______
37 + 20 = ______
92 − 10 = ______
63 + 20 = ______
3 × 10 = ______
25 − 10 = ______
55 + 10 = ______
9 × 10 = ______
49 + 10 = ______
7 × 10 = ______
