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
71 − 10 = ______
8 × 10 = ______
48 + 20 = ______
78 + 10 = ______
40 + 10 = ______
32 + 10 = ______
52 + 20 = ______
50 + 10 = ______
29 − 10 = ______
76 − 10 = ______
86 − 10 = ______
2 × 10 = ______
35 + 10 = ______
5 × 10 = ______
92 − 10 = ______
68 + 10 = ______
12 + 10 = ______
6 × 10 = ______
34 + 20 = ______
67 − 10 = ______
