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
60 + 20 = ______
69 + 10 = ______
94 − 10 = ______
46 + 10 = ______
92 − 10 = ______
5 × 10 = ______
1 × 10 = ______
83 + 10 = ______
13 + 20 = ______
67 + 20 = ______
78 − 10 = ______
43 − 10 = ______
71 − 10 = ______
62 + 10 = ______
7 × 10 = ______
20 + 20 = ______
30 − 10 = ______
98 − 10 = ______
14 + 20 = ______
24 + 10 = ______
