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
2 × 10 = ______
83 + 20 = ______
13 + 10 = ______
16 + 20 = ______
96 − 10 = ______
7 × 10 = ______
6 × 10 = ______
13 + 20 = ______
60 − 10 = ______
85 − 10 = ______
3 × 10 = ______
71 + 10 = ______
19 + 20 = ______
52 + 20 = ______
86 + 10 = ______
98 − 10 = ______
20 + 10 = ______
28 + 20 = ______
23 − 10 = ______
23 + 20 = ______
