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
43 − 10 = ______
43 + 20 = ______
34 + 20 = ______
7 × 10 = ______
81 + 20 = ______
59 − 10 = ______
8 × 10 = ______
79 − 10 = ______
57 − 10 = ______
76 + 10 = ______
24 − 10 = ______
35 + 10 = ______
45 + 20 = ______
86 + 20 = ______
70 + 20 = ______
70 − 10 = ______
19 + 20 = ______
46 + 20 = ______
6 × 10 = ______
30 + 20 = ______
