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
98 − 10 = ______
78 + 20 = ______
66 − 10 = ______
9 × 10 = ______
1 × 10 = ______
35 − 10 = ______
24 − 10 = ______
72 + 20 = ______
13 + 20 = ______
59 + 10 = ______
20 + 20 = ______
2 × 10 = ______
94 − 10 = ______
3 × 10 = ______
93 − 10 = ______
44 + 10 = ______
81 − 10 = ______
26 − 10 = ______
43 + 10 = ______
88 + 20 = ______
